Lecture notes

Martin Goik

Stuttgart Media University / MI

	Available formats:	Webhelp (this document) Zip archive for offline usage EPUB
	Hosted at:	HdM Stuttgart (primary site) medieninformatik.cloud (alternate site)
	Source code provided at `https://gitlab.mi.hdm-stuttgart.de/goik/GoikLectures`
	Published under the terms of the Creative Commons Attribution 4.0 International Public License.

Table of Contents

113105 Software development 1

Getting started

Lecture related resources

Using the exercises

Related resources

Coached exercises

Using plain Java™

Using Intellij IDEA

“Hello, World” and friends.
Simple calculations
A conditional
A loop

Language Fundamentals

Integer, ASCII and Unicode

Primitive types

Arithmetic limitations

Conversions

Operators and expressions

Arithmetic and logical operators
Assignment operators
Unary operators
Operator precedence

The if conditional statement

if-then-else
Using else if

The switch statement

From blocks to methods

while
do ... while
for

Logic related external exercises

Using automated tests.

Multi-dimensional arrays

Objects and Classes

Static methods

Working with objects

Object methods

Encapsulation and access control
Getter and setter methods
Signatures
Method overloading
Constructors
Scopes

Class members and methods

A mathematical table.
Interest calculations
Programmer's favourite expression
Lotteries revisited
The greatest common divisor and the common multiple

Maven project dependencies

Maven command line usage
Intellij IDEA on top of Maven

Building a library of mathematical functions.

Maximum and absolute value
Factorial, the direct way
Factorial, the recursive way
Binomials, the recursive way
Implementing exponentials.
Adding sine
Strange things happen

Unit testing

Tests and implementation
Improving the algorithm
Parameterized testing
Helpful Junit methods
Technical details
Example: A class representing fractions

Value types and reference types

Arrays reconsidered

Varargs method parameter
Reconsidering System.out.format().
java.util.Arrays helpers
Extending arrays
Understanding static int main(String[] args)
Tic-tac-toe
Providing statistical data
Prime numbers revisited
The median of a given sample.
Plotting functions

Method calls, the details

Enumerations (enum)

Enumeration by integer representation
Enumeration by dedicated class
Defining a private constructor
enum replacing class

Core Classes

Using class Math
String exercises
Analyzing file pathnames

Inheritance

Overriding equals() and hashCode()

Overriding toString()

final methods

Abstract methods

Geometry classes reconsidered

protected access

final classes

The instanceof operator

The @Override annotation.

Runtime polymorphism

Error Handling

Checked vs unchecked exceptions
Exceptions and Junit
Variants
Class java.lang.Exception

Working with Numbers

Boxing and unboxing
Number Parsing
Number Formatting
Working with Money
Generating Random Numbers

Advanced topics

interface definitions and abstract Classes

Interfaces and sorting
A nonsense generator
An interface based plotter

Application deployment I

Preparations
Exercises
Part II, Exercises

Reading character streams

Preparations
Exercises

Collections

Preparations
Collections I, Exercises
Collections I, Exercises
Collections III, Exercises
Collections IV, Exercises
Maps 1, Preparations
Exercises
Towns and country names
Creating an overview of grades

Examination bonus point projects

Weather forecast
Reverse Polish notation (RPN) calculator
Currency converter, Summer 2017
An address database, Winter 2016
Poor man's UNIX grep, Summer 2016
Project Euler's sieve, Winter 2015

Exercising past examinations

Starting an exam
Implementing the project skeleton
Finish the exam

Examination hints

Past Software Development 1 examinations

2025 winter
2025 summer
2024 winter
2024 summer
2023 winter
2023 summer
2022 winter
2021 winter
2021 summer
2020/1 winter
2020/2 winter
2020 summer
2019 winter
2019 summer
2018 winter
2018 summer
2017 winter
2017 winter
2015 winter
2015 Sommer
2014 Winter

Past Software Development 1 exam preparing tests

Test 01
Test 02
Test 03
Test 04
Test 05

Working with git

Working with git locally.
Shared development with centralized remote.
Conflicts

Apache Maven

The project object model pom.xml
Plugins
Dependencies
Lifecycle, phases and goals

List of software development 1 lecture exercises

113492 Technical Documentation

Software independent considerations

General remarks

Common building blocks

Block level elements

Target formats
Selected elements
Schematron
Customizing
Assemblies
Styling the editor application

Modular documents

RelaxNG Schema

Transforming documents

Target format HTML
Target format print

TeX / LaTeX
Docbook

LaTeX hello,... world
Important elements
Macro
A complete document

Project proposals

Building a reveal.js editor
Authoring journey descriptions
Gitlab pages integration of Docbook
Codingbat reloaded
XML based exercise compilations
Past projects

List of software development 1 lecture exercises

113473 Database and application development

Database features

Selected database products overview

Installation
Features
Exercises

Installation
Features
High performance sharding cluster
Exercises

JDBC: Accessing Relational Data

Persistence in Object Oriented languages

Introduction to JDBC™

Write access, principles
Write access, coding!
JDBC™ and security
Read Access
Dynamically load a JDBC™ driver
Handling surrogate keys
Transactions

Configuring a Maven based Eclipse Java™ project with Hibernate

Creating a JPA configuration

A round trip working with objects

Persisting objects
Loading Objects by primary key
Loading objects by queries
Criteria based queries

Mapping single entities and database tables

Transient properties
Properties and NULL values
Defining keys
Composed keys
Indexes (non-unique)
Renaming tables and attributes
Changing the default type mapping
Object states and transitions
XML to JPA using JAXB

Inheritance

Single table per class hierarchy
Joined subclasses
Table per concrete class

Mapping related Components and entities

Primary keys revisited
Entity and value types
Mapping components

orphanRemoval vs. CascadeType.DELETE

Project ideas

Extending UNIX grep to databases
Database copy tool
Creating data samples
Database schema evolution tool

List of Database and application development lecture exercises

113475 Software defined Infrastructure

Manual server management

Preliminaries

Hetzner cloud administration GUI

Public / private key pair
Pass phrases and ssh agent
Agent forwarding
Port forwarding
X11 forwarding
Network data transfer using scp, rsync and ssh

Prerequisites

Ubuntu / Debian Package management

Prerequisites

Cloud provider

Working with Terraform
Cloud-init
Terraform modules
Volumes
Terraform loops
Terraform and DNS
Generating web SSL certificates
Private networks

Preliminaries
Exercises

Recommended Preparations
Exercises

Apache web server

Preliminaries
Exercises

Exercises

Network file systems served by Samba

Prerequisites
Samba server installation

Recommended Preparations
Exercises

Introduction
Exercises

Functional checks
SNMP based checks
ssh based checks

List of Software defined Infrastructure lecture exercises

Common topics

Project documentation

Bibliographic links

List of Figures

1. How much time to invest?
2. Your biggest enemies
3. German humour
4. AI tools and learning
5. 4 most imperative study objectives
6. Tuition attendance and exam results summer 2025
7. Examinations and result
8. Moodle and tuition groups
9. BW Lehrpool pool rooms
10. Recommended reading resources I
11. Recommended reading resources II
12. Online tutorials
13. Unix and the terminal
14. Online programming, automated feedback
15. Online programming I
16. Online programming II
17. Choosing the SD1 bwLehrpool VM
18. Intellij IDEA IDE
19. Live lecture additions
20. Embedded exercises
21. Using the exercises
22. HdM mail server
23. Configure MI VPN client access
24. MI Cloud server
25. MI File server
26. MI Git versioning server
27. Coached exercises
28. Edit - compile - execute
29. Defining class Hello
30. Compiling Java™ file
31. Command line Java™ file compilation
32. Java byte code file Hello.class
33. Source code vs. bytecode
34. Executing byte code file Hello.class
35. Command line byte code file Hello.class execution
36. Wrap up: The edit - compile - execute cycle
37. Intellij IDEA requires a JDK™
38. Intellij IDEA installation
39. Idea »Ultimate« license types
40. Alternative: Using the HdM license server
41. Creating a new Java project
42. Getting first Java™ impressions
43. Manual calculation: Abacus
44. Mechanical calculation: Cash register
45. Electromechanical calculation: Zuse Z3
46. Vacuum Tube: Eniac
47. Transistor: Microprocessor ICs
48. Z80 8-bit data bus
49. Progress in hardware 1
50. Progress in hardware 2
51. Simple facts:
52. Unsigned 3 bit integer representation
53. Binary system addition
54. 3 bit two-complement representation
55. 3 bit two complement rationale: “Usual” addition
56. Signed 8 bit integer binary representation
57. 7-bit ASCII
58. 7-bit ASCII with even parity bit
59. Western European characters: ISO Latin 1 encoding
60. Unicode UTF-8 samples
61. Java types
62. Java signed integer primitive types
63. Four int literal representations of decimal 29
64. Java unsigned integer, floating point and boolean primitive types
65. Variables: Handles to memory
66. Local variable declaration
67. Declare, assign and use
68. Combining declaration and initialization
69. Compound declarations
70. Identifier in Java™:
71. Identifier name examples:
72. Java™ keywords.
73. Note on contextual keywords
74. Variable naming conventions
75. Constant variables
76. Case sensitivity
77. Define before use
78. Type safety
79. Compile time analysis
80. Type inference (JDK™ 10)
81. Forcing conversions by cast
82. Watch out!
83. Casting long to int
84. Casting double to short
85. «C» programming language “liberal” assignment policy:
86. Consequences
87. From the report
88. Dynamic typing in PERL
89. Dynamic typing in PERL, part 2
90. Using final
91. Reference type examples
92. float and double
93. Four ways representing 35
94. Choose your output representation
95. Know your limits!
96. Literal examples
97. int literals
98. Just kidding ...
99. Strange things I
100. Strange things II
101. Limited floating point arithmetic precision
102. Nearest float to 0.1F
103. FloatConverter
104. Integer division: Take care!
105. Widening from byte to short
106. Narrowing from int literal to char variable
107. A widening «ladder»
108. A narrowing «ladder»
109. The binary plus operator
110. Binary operator output type
111. Detecting arithmetic overflow (Java 8+)
112. Dividing by zero
113. Generic binary operator
114. The modulus operator %
115. Binary operator type examples
116. No binary + operator yielding byte
117. int expression assignment
118. Constant expression assignment
119. The logical “and” operator &
120. The += operator
121. The &= operator
122. Arithmetic assignment operators
123. Logical assignment operators
124. Increment operator ++
125. Different range behaviour!
126. Cast required
127. Prefix and postfix notation
128. Operator examples
129. Precedence of “*” and “/” “+” over “+” and “-”
130. A binary operator's operands evaluation priority
131. “left to right” or “right to left”
132. Operator precedence references
133. “+” acting as string concatenation operator
134. Implicit string conversion and concatenation
135. Java™ comment flavors
136. Inline comments by /* ... */
137. Javadoc™ comments
138. Statements: General syntax
139. Statement examples: Declaring and assigning variables
140. Expression vs. statement
141. Multiple statements per line
142. Debugging multiple statements per line
143. Method local variable scope
144. Nested blocks and variable scopes
145. Block purposes
146. Principle of swapping two variables
147. Swapping two variables
148. Swapping two variables using a block
149. Conditional block execution
150. if syntax
151. if ... else
152. if ... else syntax
153. Best practices comparing for equality
154. Single statement branches
155. Nested if ... else
156. Enhanced readability: if ... else if ... else
157. if ... else if ... else syntax
158. User input recipe
159. Using a Scanner class collecting user input.
160. Converting numbers to day's names
161. Numbers to day's names: The hard way
162. Better: Using switch
163. switch Syntax
164. Switching on strings
165. switch expressions
166. Assigning switch expressions
167. Allowed types for switch statements
168. Labels must be constant expressions
169. Two blocks, same logic
170. Replacing two blocks by one method
171. Passing values to methods
172. Passing values to methods
173. Why loops?
174. Number of repetitions given by user input
175. A while loop
176. Combining increment and termination condition
177. while syntax
178. Empty while body
179. A do ... while loop
180. do ... while vs. while
181. do ... while syntax
182. Frequent usage of while
183. Replacing while(...) by for(...;...;...)
184. for syntax
185. for variable scope
186. for variable scope equivalence
187. for vs. while relationship
188. Nested loops 1
189. Nested loops 2
190. Better readability: row and column in favour of i and j
191. Calculating values
192. Response to coding errors
193. Unit test concept
194. alarmClock(...) with errors
195. Testing alarmClock(...)
196. Testing alarmClock(...) details
197. Motivating Arrays
198. Per member repeating tasks
199. Example: int array of primes
200. Java Visualizer
201. Loop prime values
202. Mind the limit!
203. Safer: Using length
204. Even better: “for-each” style loop
205. Mind the limit, part two
206. Primitive data one step initialization
207. Array
208. Two syntax variants
209. Passing an anonymous array to a method
210. Two-dimensional arrays
211. Behind the scenes
212. Memory allocation
213. Nested array initialization
214. Nested »ragged« array initialization
215. A method adding two values
216. Syntax of method definition
217. The static modifier matters!
218. Documentation: Javadoc™ is your friend!
219. Separating usage and definition
220. Representing two-dimensional points
221. General class structure
222. What's a class anyway?
223. Rectangle objects
224. A class describing rectangles
225. Rectangle class and instances
226. Generated diagrams
227. The new operator: Creating rectangle instances
228. Syntax creating instances
229. Assigning attribute values to class instances
230. Instance memory representation
231. References and null
232. Checking for object presence
233. Why packages ?
234. Rules and conventions
235. Fully qualified class name vs. import
236. Don't be too lazy!
237. Special: Classes in package java.lang
238. Class, package and file system
239. Source hierarchy view
240. Object methods
241. Get a rectangle's area
242. Currently: rectangle's area by class method
243. OO: rectangle's area by instance method
244. Transition to OO
245. Scaling a rectangle
246. Scaling method implementation
247. Scaling method signature
248. Using the scale(...) method
249. Method definition syntax
250. A rectangle's perimeter
251. getPerimeter() method implementation
252. Using Rectangle.getPerimeter()
253. Access control: Overall objectives
254. Example: Two ways implementing a day's time
255. private modifier access violation
256. Absent access modifier, access violation
257. Access rules
258. “Tips on Choosing an Access Level”
259. Direct access vs. setter method
260. Why adding setter methods?
261. Implementation change: Minutes only, no hours
262. Defining type signatures
263. Type signature examples
264. Defining method signatures
265. Method signature examples: Ignore return type!
266. Method overloading: Same name, different signature
267. Overloading, alternate names
268. No overloading in »C«
269. »C« requires unique function names
270. No distinction on return type
271. Method signatures rationale
272. Method signatures rationale
273. Example: IO.print(...)
274. Creating and initializing rectangles
275. Defining a constructor
276. Constructor syntax
277. Constructors
278. Multiple overloaded constructors
279. Constructor calls within constructor
280. Instances by overloaded constructors
281. No constructor vs. default constructor
282. Non - default constructor, but no default constructor
283. Employee example package hierarchy
284. Circle and variable scopes
285. Documenting classes and methods
286. Generated Javadoc
287. Refactoring «r» ⇒ «radius»
288. Scope assignment problem
289. this overriding method scope
290. Why should we require an instance?
291. Solution: Replace instance method by class method using static
292. Club membership objectives
293. Step 1: Implementing club member names.
294. Showing membership info.
295. Step 2: Adding membership numbers.
296. Showing membership numbers.
297. Member creation steps
298. Accessing the club's overall member count?
299. Accessing the club's member count
300. Syntax accessing class members
301. static / non-static wrap up
302. Finally understanding IO.print(ln)
303. Newton's letter to Robert Hooke
304. Application execution prerequisites
305. Why Maven project management?
306. Example: Creating PDF using iText7
307. Maven iText library pom.xml definition
308. Itext transitive dependencies
309. Class location in iText library
310. Class location in iText library
311. Maven repositories
312. Maven archetypes
313. Project «lottery» depending on «common»
314. Providing project «common»
315. Publish project «Common»'s library
316. Content of archive common-1.0.jar
317. Consuming project «lottery»
318. External libraries view
319. Using Helper.factorial(...) computing $(\begin{matrix} n \\ k \end{matrix}) = \frac{n!}{k! (n - k)!}$
320. Maven artifact dependency.
321. Using the MI Sd1 project template
322. CLI example
323. Supplementary MI Maven archetypes
324. CLI testing mi-maven-archetype-quickstart
325. CLI archetype details
326. Generated project layout
327. Maven compile
328. Compilation file view
329. Maven package
330. Executing Java™ archive second-0.9.jar
331. Maven javadoc:javadoc
332. Maven clean
333. Intellij IDEA Maven support
334. Adding MI Maven server
335. New MI archetype project
336. pom.xml content changes
337. Intellij IDEA generating Javadoc™
338. Pascal's triangle representing binomial coefficients.
339. An implementation sketch for the exponential
340. Comparing exponential and approximation
341. Comparing sin(x) and its approximation.
342. Recommended reading
343. Test categories
344. Example: Computing prime numbers
345. Unit test principle
346. Test driven development
347. Steps in Unit Testing
348. Step 1 + 2: Specify method, write skeleton
349. Execution yet being flawed
350. Sample test data
351. Step 3: Junit based specification test
352. Junit skeleton test result (Maven CLI)
353. Junit skeleton test result (IDE)
354. Providing explanatory failure messages:
355. Step 3: Providing more prime tests
356. Step 3: Prime mass testing
357. Step 4: Implement skeleton
358. Step 5: Testing our first implementation
359. Implementation observation
360. Changing the implementation
361. Regression test
362. Systematic error debugging
363. Error correction in detail
364. Parameterized tests
365. Required Junit dependency
366. CSV parameter testing
367. CSV parameter testing results
368. CSV parameter file based testing
369. Available comparison methods
370. Caution comparing float / double !!
371. Weird arithmetics?
372. Limited representation precision
373. Solving the issue
374. The @Test annotation
375. The Assertions class
376. Importing dependencies
377. Dependency archive content
378. Value vs. reference type variables
379. Different behaviour!
380. Value variable Details
381. Reference variable Details
382. Only «call-by-value» in Java™
383. «call-by-value» details
384. «call-by-reference» for objects?
385. «call-by-reference» details
386. No «call-by-reference» in Java™!
387. No «call-by-reference» details
388. C++ reference operator “&”
389. C++ offers «call-by-reference» by virtue of “&”
390. C++ «call-by-reference» details
391. Reference data one step initialization
392. Array instances are special!
393. Array creation details
394. Array parameter passing
395. Parameter passing details
396. Array initializer: Value and reference types
397. Expecting one int argument
398. One, two or three int arguments by overloading
399. Observations
400. Arbitrary number of arguments by array
401. Vararg: Syntactic sugar by ellipsis »...«
402. Varargs preconditions
403. Further reading on varargs
404. Arrays.toString(...) and Arrays.sort(...)
405. Arrays.binarySearch(...)
406. Arrays.fill(...)
407. Arrays.copyOfRange(...)
408. Arrays.equals(...)
409. Lack of extendability
410. Extending an array
411. Extension result
412. Using Arrays.copyOf()
413. static void main(String[] args)
414. Intellij IDEA run configuration
415. Intellij IDEA run configuration
416. Creating executable jar
417. Two Tic-tac-toe players fighting each other.
418. Two Tic-tac-toe players fighting each other.
419. Method calling
420. Three variable scopes
421. Scope lifetimes
422. Two runtime memory categories
423. Stack: Four operations
424. Example: Storing integer values
425. Method calling
426. Call stack trace
427. IDE debugger
428. Motivation
429. Weekly offered lectures
430. Weekly offered lectures by simple numbers
431. Weekdays int representation
432. Weekly offered lectures using constants
433. Converting index values to day names
434. Providing lecture info
435. Sample lectures
436. Pitfall #1 of 2: Bogus day index value
437. Pitfall #2 of 2: Method argument order mismatch
438. Enumeration by class instances
439. Class instance per enumeration value
440. switch no longer works
441. Re-writing getPrice()
442. Pitfall: Creating an undesired instance
443. Define a private Day constructor
444. Preventing undesired Day instance creation
445. Adding a day name attribute
446. enum Day replacing public class Day
447. switch statements working again
448. enum constructor being implicitly private
449. Openjdk source code repository
450. Superclass Object
451. String literals
452. OpenJDK String implementation
453. String copy constructor
454. Copy constructor and heap
455. Operator == and equals()
456. Remarks == vs. equals()
457. Operator == and equals() implications
458. equals() is being defined within respective class!
459. Math.sin(double x)
460. Guess who's inheriting the money
461. Biology and inheritance
462. Duplicate code
463. Idea: Centralize common code
464. Common and specific properties
465. Basic shape inheritance
466. Inheritance
467. Implementing Shape hierarchy
468. Creating instances
469. Shape constructor
470. Creating Rectangle instances
471. Rectangle constructor
472. Shape.equals()
473. Rectangle.equals()
474. Printing a Shape's info
475. Overwriting toString()
476. Shape extending Object
477. Logging Rectangle instances
478. Overriding toString() in Rectangle.
479. Rectangle extending Shape
480. Implementing Circle.toString()
481. Shape and toString()
482. Moving Shape instances
483. Implementing Shape movements
484. Fools are everywhere!
485. Solution: final prevents overriding
486. Calculating a shape's area
487. Desired: Polymorphic getArea() call
488. Problems:
489. abstract method getArea()
490. abstract method getArea()
491. What's a “shape” anyway?
492. No instances of abstract classes.
493. Mandatory getArea() implementation.
494. Facts about abstract fields, methods and classes.
495. Moving shapes
496. protected access
497. final classes
498. final classes rationale
499. “Defeating” polymorphism
500. Defining equals(...): Expectations
501. Defining equals(...) of Shape instances
502. Comparing center coordinates
503. Implementing Rectangle.equals()
504. Implementing Circle.equals()
505. Testing equality of Shape objects
506. Overriding Object.toString()
507. @Override: Compile time error detection
508. Meta info of an instance
509. Getting instance meta info
510. Implementing getArea()
511. Polymorphic getArea() call
512. Runtime polymorphic dispatch
513. Polymorphic dispatch pseudo implementation
514. Compile- vs. runtime errors
515. NullPointerException (NPE for short)
516. NullPointerException is a class
517. Throwing an exception
518. Catching an exception by try {...} catch {...}
519. try {...} catch {...} syntax
520. Checked and unchecked exceptions
521. Further readings
522. Checked and unchecked exceptions
523. Expected exceptions in Junit
524. Just finally, no catch
525. try-with-resources (Java™ 7)
526. Scanner implementing AutoCloseable
527. No close() method in e.g. class String
528. Method printStackTrace()
529. Ascending inheritance ordering
530. Wrong ordering
531. Implementing convert
532. Problem: “Silent” errors
533. Step 1: Find exception base class
534. Step 2: Derive CardinalException
535. Step 3: Throwing CardinalException
536. Step 4: Unit test throwing CardinalException
537. Stack of integer values
538. Java™ collection features
539. Behind the scenes
540. Boxing and unboxing
541. Boxing syntax comparison
542. Parsing Integer user input
543. Parsing binary representation
544. Standard parse methods
545. Excerpt from java.util.Locale
546. Locale properties
547. Get a NumberFormat instance
548. Create a custom formatter
549. Polymorphic number parsing
550. Limited float precision
551. Limited double precision
552. Using BigDecimal
553. Chaining BigDecimal operations
554. BigDecimal features
555. Using static double random()
556. Seeding a pseudo random generator
557. Interface examples
558. Observations
559. Writing strings to file
560. Using Text2File
561. Possible Text2File errors:
562. Employ “try-with-resources”
563. interface syntax
564. The AutoCloseable promise
565. abstract class replacement
566. interface vs. abstract class
567. interface MyAutoCloseable
568. Extending MyAutoCloseable to flush
569. Using MyFlushable
570. Inheritance hierarchy
571. Upcoming topics
572. Interfaces implemented by class String
573. The Comparable interface
574. class String and Comparable
575. Comparison examples
576. Ascending and descending names
577. API requirements
578. Sorting strings alphabetically
579. Situation dependent sorting criteria
580. Implementing flexible sorting
581. Comparator in action
582. Case insensitive sort
583. Sort descending by lambda expression
584. Account hierarchy
585. Students and lecturers
586. An array of strings
587. An associative array describing month lengths
588. Grouping towns by country names
589. Collaborative efforts
590. Project rules
591. Internal code documentation
592. Internal code documentation hints
593. Javadoc™ mismatches
594. (Automated) tests
595. Deployment and execution
596. Marking criteria
597. Sample forecast session
598. Sample forecast invocation
599. Underlying data provider
600. cities.list.json.gz providing cities
601. ma/Copy URL result to file
602. Parse city data
603. Parse weather data
604. Requirements
605. Logging
606. Minimalist token scanner
607. Scanner output -1.34 0.34 + sqrt
608. Adding error detection
609. Error message
610. Running the currency converter terminal application.
611. Exam training by Guacamole
612. Environment hints:
613. Preparing an examination
614. Generating Javadoc™.
615. Programming hints
616. The implement - test - implement cycle
617. Finishing the exam
618. Personal examination cheat sheets
619. Unit tests in examinations
620. Example interface definition
621. Corresponding test
622. Don't cheat!
623. Unit tests strategy in examinations
624. Steps creating a new project
625. Creating a project at MI gitlab
626. Cloning a git project
627. Enter project folder, add Readme.md
628. Committing change set
629. Push to upstream repository
630. Inserting a Maven project
631. git status 1
632. Adding Maven files to repository
633. git status 2
634. Commit Maven project files
635. git status 3
636. Push to upstream again
637. Reverting changes
638. Pull changes from upstream
639. From https://www.urbandictionary.com
640. Useful links
641. Initialize git project
642. Configure author related data.
643. Adding resources to project index and staging area
644. Committing change set
645. Project versioning status
646. Adding a comment
647. git diff tracing changes
648. Reverting individual file.
649. Compiling, Math.class and Print.class.
650. Math.class, Print.class and versioning.
651. Show project's log
652. Switch to an older revision ...
653. ... and forth to current master's HEAD
654. Centralized remote repository
655. Step 1: Create remote repository
656. Step 2: Retrieve remote repository address
657. Step 2: Connect to remote repository
658. Step 3: Push local to remote
659. Step 3: Pull remote to local
660. Alternative: Create remote, then clone
661. Conflicting changes
662. Commit schedule
663. User B: git push fails
664. User B: git pull fails as well
665. Merge conflict details
666. Struggling for resolution
667. Merging Print.java manually
668. Commit and push merge
669. Maven: Recommended reading
670. What is Maven anyway?
671. Maven: Facts and benefits
672. Convention Over Configuration
673. Maven project layout
674. The project object model file
675. pom.xml characteristics
676. pom.xml vs. Makefile
677. «Hello, world» pom.xml
678. Executing «compile» phase
679. Examining the Java™ version culprit
680. Resolving encoding / Java™ version issues
681. POM inheritance
682. The Super POM
683. pom-4.0.0.xml content
684. Favour https in ~/.m2/settings.xml
685. Resolving to effective pom.xml
686. Plugin architecture
687. Sample plugins
688. Example: The maven-javadoc-plugin
689. Adding test capabilities
690. Dependency listing
691. Absence of hamcrest in pom.xml
692. ~/.m2/repository/junit/junit/4.12/junit-4.12.pom
693. Transitive dependencies
694. Oblivious to test implementation: TestNG
695. Phases
696. Maven lifecyles and phases
697. hooking into phase
698. Why XML based publishing?
699. XML features
700. Editors, compositors, designers ...
701. Promises in publishing
702. Publishing reality
703. Single source publishing
704. Separating Structure, content and format
705. Separating concerns
706. Content
707. Hierarchical structure
708. Hierarchical structure, XML source
709. Presentation
710. Example 1: HTML 5, pure structure
711. Example 2: TeX / LaTeX
712. Separating structure and presentation(s)
713. Sample technical document
714. Observations
715. Pros and cons of TeX / LaTeX
716. Tools of the trade
717. Inline formatting
718. Paragraphs
719. Lists
720. Tables
721. Images
722. Mathematical formulas
723. Cross references
724. Document sectioning
725. Modular document components
726. What is Docbook?
727. Authoring and publishing
728. Document representation
729. Software centric schema
730. Document targets
731. Docbook components
732. Target format overview
733. Tooling / Software
734. Different schema languages
735. Plain HTML
736. Web help
737. Eclipse help
738. Printed output
739. Paragraph
740. Itemized list
741. Ordered list
742. Glossary list
743. Nested lists
744. Reference
745. A table
746. A MathML equation
747. A TeX equation
748. Reference
749. Figure
750. Image map + calloutlist
751. Video
752. A warning
753. Reference
754. Recursive sections
755. Non-recursive sections
756. Two different link flavours
757. Choosing a top level element
758. Allowed 5.1 top level elements
759. Schematron on top of RelaxNG
760. Example: xml:id and permalink
761. Using Display #Anchors
762. Considerations author based permalink
763. Schematron permalink rule
764. HTML customization overview
765. Target specific configuration
766. Link stability
767. use.id.as.filename = 1
768. Parameter: use.id.as.filename
769. Customization parameter ulink.target
770. callout.unicode / callout.graphics
771. Links
772. Hooking into XSL
773. Categories
774. Example: videos
775. Links
776. Customize by CSS
777. Example CSS modifications
778. Styling the editor
779. Motivating modular documents
780. Monolithic document problems
781. Document decomposition
782. A monolithic document
783. Decomposing documents
784. XML grammar defining languages
785. Address list schema
786. Format conversion problem
787. XSL template rules
788. Example: Formatting <title> elements
789. Basic FO introduction
790. XMLMind Editor
791. Oxygenxml Author
792. Vendor links
793. Inverse editing
794. Document representation
795. Components
796. BibTeX
797. Makeindex example
798. Makeindex work flow
799. Extension example: MusiXTeX
800. Flavours
801. Components
802. Editors
803. reveal.js authoring tools: Principle
804. reveal.js features #1 of 3
805. reveal.js features #2 of 3
806. reveal.js features #3 of 3
807. reveal.js observations
808. Authoring tool project goals
809. Principle
810. Required / to be acquired skills
811. Principle
812. Codingbat: Desired features
813. Desired features
814. CRUD operation
815. Query
816. Schema
817. Procedures / triggers
818. Transactions / recovery
819. Data access control
820. API support
821. Installing Docker
822. Why LDAP?
823. LDAP introduction
824. Running a Docker container
825. Using docker-compose
826. Installing Apache Directory Studio
827. Administrator access to your DIT
828. Administrator access to your server's data tree
829. Administrator access to your server's configuration
830. Terminology
831. Adding an entry
832. Adding a new attribute
833. Replacing an attribute value
834. Deleting an attribute entirely
835. Multi valued attributes
836. Set semantics of multivalued attributes
837. Deleting selected attribute values
838. Query scope
839. Query filter
840. Schema support
841. Implementations
842. Implementations
843. Exercises
844. Why MongoDB?
845. Running a Docker container
846. Using docker-compose
847. Manual user creation
848. Log in as user explorer
849. Using IntelliJ
850. Idea show all databases
851. Terminology / Hierarchy
852. Adding a document
853. Updating attributes
854. Deleting a document
855. Deleting multiple documents
856. Multi valued attributes
857. Set semantics of multivalued attributes
858. Deleting selected attribute values
859. Deleting an attribute
860. Query filter
861. Schema validation support
862. Violating required field
863. Schema types
864. Enforcing unique keys
865. On the downside
866. Implementations
867. Implementations
868. Sharding rationale
869. Sharding rationale
870. Exercises
871. Prerequisite knowledge
872. Persistence [Bauer2015]
873. Java™ transient instances
874. RDBMS persistent records
875. Persisting transient User instances
876. Observations
877. Networking between clients and database server
878. JDBC™ features
879. JDBC™ in a three-tier application
880. JDBC™ connecting application server and database.
881. JDBC™ connection parameter
882. Components of a JDBC™ URL
883. IETF Uniform Resource Identifier
884. URL examples
885. Sub protocol examples
886. No standard port assignments ...
887. ... but Postgresql made it into Linux
888. JDBC™ architecture
889. DriverManager: Bootstrapping connections
890. Example: Mysql connection implementation
891. Driver libraries
892. Driver libraries by Maven
893. Driver unavailable
894. Connection interface
895. Statement interface
896. JDBC™ instances and relationships.
897. Important Connection methods
898. Important Statement methods
899. JDBC™ and threading.
900. JDBC™ connection pooling
901. pom.xml driver runtime scope
902. Person table
903. Objective: insert person record
904. JDBC™ backed data insert
905. Result
906. Two JDBC™ configurations
907. Figure 904, “JDBC™ backed data insert ” deficiencies
908. Why properties?
909. message.properties string externalization
910. Properties code sketch
911. Intellij IDEA settings, preconditions
912. Database related unit test phases
913. Implementing unit tests
914. Spring is your friend
915. Project layout
916. Closing connections
917. Employ AutoCloseable
918. Sniffing a JDBC™ connection by an intruder.
919. Setting up Wireshark
920. Capturing results
921. Mysql™ security
922. Mysql™ security
923. Assembling SQL
924. SQL injection principle
925. Preventing traffic tickets
926. Trouble at school
927. SQL injection impact
928. SQL injection relevance, [Clarke2009]
929. Handling injection attacks, part 1
930. Handling injection attacks, part 2
931. Input filtering
932. Validating user input prior to dynamically composing SQL statements.
933. Error message being presented to the user.
934. SQL statements in Java™ applications get parsed at the database server
935. Two questions
936. Addressing performance
937. Addressing performance mitigation
938. Restating the SQL injection problem
939. Solution: Use java.sql.PreparedStatement
940. PreparedStatement principle.
941. Three phases using parameterized queries
942. PreparedStatement example
943. Injection attempt example
944. Limitation: No dynamic table support!
945. JDBC™ read and write
946. Server / client object's life cycle
947. JDBC™ record container
948. Reading data from a database server.
949. Names and birth dates of friends
950. Accessing friend's database records
951. Important ResultSet states
952. JDBC™ to Java™ type conversions
953. Java™ to JDBC™ type conversions
954. Error prone type accessors!
955. Polymorphic accessor
956. Access by column name
957. Access by column index
958. Problem: null value ambiguity
959. Resolving null value ambiguity
960. Problem: Dynamic driver configuration
961. Shim driver (facade)
962. Users and groups
963. Isolation level
964. JDBC™ Isolation level
965. Setting the isolation level
966. Reasons for using Maven
967. Transitive dependencies
968. A basic persistence.xml JPA configuration file.
969. JPA persistence provider
970. Mapping hibintro.v1.model.User instances to a database.
971. A basic User class.
972. Mapping properties to attributes.
973. Annotating integrity constraints
974. Database schema mapping instances of hibintro.v1.model.User.
975. Loading a single object by a primary key value.
976. Retrieving hibintro.v1.model.User instances by HQL.
977. Business rules for projects
978. Persistence related object states
979. Introducing inheritance mapping
980. Modelling payment.
981. A single relation mapping.
982. Mapping the inheritance hierarchy.
983. Inserting payment information
984. Figure subclasses
985. Joined subclass mapping.
986. Implementing Object.equals(Object) by natural keys
987. JPA caches.
988. Common project steps #1/3
989. Common project steps #2/3
990. Common project steps #3/3
991. Common technologies
992. UNIX grep sample
993. Similarities and differences
994. Database grep requirements
995. Connection profile handling
996. Search level specification
997. Property based searches
998. Source and target database
999. Copy process
1000. Considerations
1001. Sample data creation
1002. Schema evolution
1003. Techniques
1004. Subscribe to lecture
1005. Versioned code and documentation content
1006. Online documentation samples
1007. Create and publish a Hetzner account
1008. Your cloud project
1009. Server creation prerequisite: A Firewall
1010. Your first server
1011. Server access by ssh
1012. No ssh password based login
1013. Server access by web gui
1014. Current server security flaws
1015. Safety considerations
1016. ssh-keygen for elliptic key creation
1017. An elliptic ssh public / private key pair
1018. Result of ssh-keygen execution (client side)
1019. Transfer public key from client to server
1020. Cleaning up!
1021. Tedious: Passphrase required for each remote login
1022. Solving the passphrase issue
1023. Behind the scenes: How does it work?
1024. Intermediate host hopping
1025. Intermediate host hopping fails
1026. Intermediate host hopping options
1027. Enable ssh agent forwarding
1028. Forwarding port 80 to 2000 at localhost
1029. Frequent use e.g. connecting to remote database server
1030. X11 browser application forwarding
1031. Network file copy using scp
1032. Network file copy using rsync and ssh.
1033. Shell / Bash
1034. Choosing a text editor
1035. Secure Shell
1036. Working with files
1037. Network
1038. Processes handling
1039. Suggested readings:
1040. .deb packages
1041. The dpkg command
1042. The apt command
1043. Rationale using PPA's
1044. What's it all about?
1045. Terraform resources
1046. Creating databases
1047. Creating cloud resources
1048. Your course documentation: Code structure
1049. The env.template file
1050. Getting started: The Hetzner API token
1051. Minimal Terraform configuration
1052. Terraform init
1053. Terraform plan
1054. Terraform apply
1055. A word on storing secrets
1056. Credentials by E-Mail
1057. Problems: 😟
1058. ssh access, firewall
1059. ssh access, public key
1060. Apply ssh key access
1061. Output data details #1/2
1062. Output data details #2/2
1063. Problem 2: VCS and visible secrets 😱
1064. Addressing secrets by variable
1065. Addressing secrets by file
1066. Addressing secrets by Bash .env file
1067. Managing Terraform states
1068. Introduction and reference
1069. In a nutshell
1070. Configuration options
1071. Bash DIY
1072. Terraform interface to Cloud Init
1073. Using template files
1074. cloud-init file validation
1075. Yaml syntax quirk 1: Missing indentation
1076. Yaml missing indentation resolution
1077. Yaml syntax quirk 2: Wrong indentation
1078. Cloud-init configuration file validation
1079. Watch out for your enemies!
1080. Problem: Duplicate known_hosts entry on re-creating server
1081. Solution: Generating known_hosts ...
1082. ... cloud-init config using yamlencode / JSON
1083. ... and ssh wrapper
1084. Failsafe console login
1085. Avoiding Yaml parsing issues
1086. Terraform module Documentation
1087. Example: Creating a JSON host meta data file
1088. Parent module / sub module layout
1089. Parent module implementation
1090. Sub module implementation
1091. Sub module, JSON template file Tpl/hostdata.json and result
1092. Parent module vs. sub module context
1093. A volume: The easy way
1094. Unix mount
1095. Volume details
1096. Providing a mount point's name
1097. De-coupling server and volume creation
1098. Loop documentation
1099. Using count
1100. Subdomain per group
1101. Key file location
1102. Querying DNS by zone transfer
1103. Creating an »A« record with TTL=10
1104. Modify by delete/create
1105. Mind record caching
1106. Bind server ns1.hdm-stuttgart.cloud
1107. DNS provider
1108. DNS provider configuration
1109. Defining an “A” record
1110. Understanding web certificates
1111. Certificate trust level
1112. Certificates by Terraform
1113. dns_challenge provider
1114. rfc2136 provider configuration
1115. Bind server log file
1116. Private subnet overview
1117. Terraform network and subnetwork creation
1118. Gateway: External and internal interface
1119. intern host
1120. Lack of internet access
1121. Possible solutions
1122. http proxy apt-cacher-ng
1123. Cloud-init problem
1124. Service ready query script
1125. Terraform “service ready” dependency hook
1126. Documentation links
1127. DNS query commands
1128. DNS forward lookup
1129. Display A-record result only
1130. Important record types
1131. Name Servers: Query type NS
1132. Recommended readings
1133. Openldap server documentation
1134. What is LDAP anyway?
1135. LDAP Server cli bind
1136. Document Information Tree (DIT)
1137. Relative and absolute DNs
1138. User example
1139. objectClass
1140. objectClass clarifications
1141. Augmenting inetOrgPerson by posixAccount
1142. Structural objectClass definitions
1143. Search scopes
1144. Predicate based queries
1145. LDAP bind types
1146. LDIF exchange format
1147. LDIF sample
1148. OpenLdap server architecture
1149. An example LDAP Tree
1150. External documentation
1151. URI to filesystem mapping
1152. Virtual hosting
1153. Implementing virtual hosting
1154. IP based virtual hosting
1155. IP based, pros / cons
1156. Name based virtual hosting
1157. Name based, pros / cons
1158. LDAP backed authentication
1159. PHP FPM server
1160. File services
1161. Customer demands
1162. Driving factors
1163. Selected cloud file services
1164. Selected self hosting products
1165. Nextcloud features
1166. Lightning integration
1167. Installation
1168. Docker hub
1169. Search images
1170. Pull image using CLI
1171. Pull Nextcloud image
1172. Nextcloud based on Alpine
1173. Inspect image
1174. Search an image's tags
1175. Nextcloud image by version
1176. List images by CLI
1177. Nextcloud latest image
1178. Duplicate Nextcloud images
1179. Maven ringing a bell?
1180. Un tag image by version
1181. Remove image by version
1182. Starting Nextcloud container
1183. List running containers
1184. Enter running container
1185. Remove container
1186. List volumes
1187. List orphaned volumes
1188. Remove volumes
1189. Technical features
1190. Documentation tool chain proposal

List of Tables

1. 4 Byte Two's complement representation of int values.
2. Exercises in 113105 Software development 1
3. Exercises in 113492 Technical Documentation
4. Exercises in 113473 Database and application development
5. Exercises in 113475 Software defined Infrastructure

List of Equations

1. Calculating binomials by cancelling common factors.
1. Power series definition of $f (x) = e^{x}$
2. Power series definition of $f (x) = \sin (x)$
3. Reordering of terms with respect to an implementation.

		Next
		Preface