Java Fundamentals Course

Fundamentals Course Overview

Table of Contents

• Content
• Aspects
  • 👶 Introduction
  • 💪 Workout
  • 🦑 Deep
  • ✨ New
  • 🔮 Obscura
  • Content without aspects

Content

Below you can find the ordered content of the topic, in a linear progression

The linear progression of content aims to cover all content, course by course, workout by workout as follows:

• first course is the only core one, denoted by its manifest
• the next course is denoted by the first item of the next array in each course manifest
• each course has its order of workouts designated by the sections field in the same aforementioned manifest

1. intro-to-java

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	what-is-java	✅	❌	❌	✅	✅	❌	❌
2	why-should-i-learn-java	✅	❌	❌	✅	✅	❌	❌
3	java-versions	✅	❌	❌	✅	✅	❌	❌
4	java-hello-world	✅	❌	❌	✅	✅	❌	❌
5	compiling-and-running-java-code	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

2. java-basics

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	java-identifiers	✅	❌	❌	❌	✅	❌	❌
2	java-primitives	✅	❌	❌	❌	✅	❌	❌
3	java-strings	✅	❌	❌	❌	✅	❌	❌
4	functions	✅	❌	❌	❌	✅	❌	❌
5	packages	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

3. operators-i

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	difference-between-jre-and-jdk	✅	❌	❌	❌	❌	❌	❌
2	different-types-of-variables-in-java	✅	❌	❌	❌	❌	❌	❌
3	constant-notation	✅	❌	❌	❌	❌	❌	❌
4	ternary-operator	✅	❌	❌	✅	✅	✅	❌
5	use-meaningful-names	✅	❌	❌	❌	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

4. operators-ii

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	equals-operation-on-different-data-types	✅	❌	❌	❌	❌	❌	❌
2	from-is-included-while-to-is-excluded	✅	❌	❌	❌	❌	❌	❌
3	multiple-relational-operators	✅	❌	❌	❌	❌	❌	❌
4	prefix-and-postfix-of-increment-operators	✅	❌	❌	✅	✅	✅	❌
5	use-varargs-when-unsure-about-the-number-of-parameters	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

5. tips-i

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	use-comments-to-explain-the-purpose-of-code	✅	❌	❌	❌	❌	❌	❌
2	avoid-excessively-long-comments	✅	❌	❌	❌	❌	❌	❌
3	avoid-similar-names	✅	❌	❌	❌	❌	❌	❌
4	avoid-synonyms-when-naming	✅	❌	❌	❌	❌	❌	❌
5	follow-existing-project-naming-conventions	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

name	type	aspects	standards	done
java-8	tetris	❌	❌	❌

6. tips-ii

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	always-specify-type-parameter	✅	❌	❌	❌	❌	❌	❌
2	common-mistake-on-switch-statements	✅	❌	❌	✅	✅	✅	❌
3	how-range-operations-work	✅	❌	❌	✅	✅	❌	❌
4	short-circuit-evaluation	✅	❌	❌	❌	✅	❌	❌
5	there-is-no-such-thing-as-pass-by-reference-in-java	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

7. tips-iii

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	the-trade-off-between-short-and-descriptive-names	✅	❌	❌	✅	❌	❌	❌
2	supply-tostring-in-all-classes	✅	❌	❌	✅	✅	❌	❌
3	package-naming-conventions	✅	❌	❌	❌	❌	❌	❌
4	calling-one-constructor-from-another	✅	❌	❌	❌	❌	❌	❌
5	avoid-using-static-variables	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

8. default-methods

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	updating-interfaces-by-using-default-methods	✅	❌	❌	✅	✅	❌	❌
2	instance-methods-are-preferred-over-default-methods	✅	❌	❌	❌	❌	❌	❌
3	using-static-fields	✅	❌	❌	✅	✅	❌	❌
4	using-inner-classes	✅	❌	❌	✅	✅	❌	❌
5	an-interface-s-methods-do-not-need-to-be-declared-as-public	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

9. iteration

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	two-ways-to-use-an-iterator	✅	❌	❌	✅	✅	❌	❌
2	iterate-without-an-index	✅	❌	❌	❌	❌	❌	❌
3	double-brace-initialization	✅	❌	❌	✅	✅	❌	❌
4	diamond-operator	✅	❌	❌	✅	✅	❌	❌
5	implementing-the-comparable-interface-to-give-objects-a-natural-order	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

10. memory

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	java-memory-management	✅	❌	❌	✅	✅	❌	❌
2	distinction-between-stack-and-heap-memory	✅	❌	❌	❌	❌	❌	❌
3	only-objects-that-are-not-referenced-are-to-be-garbage-collected	✅	❌	❌	❌	❌	❌	❌
4	stop-the-world-and-garbage-collection	✅	❌	❌	✅	✅	❌	❌
5	why-java-does-not-have-sizeof-like-c-c	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

11. object-oriented-paradigm

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	what-is-a-class	✅	❌	❌	❌	✅	❌	❌
2	what-is-an-object	✅	❌	❌	✅	✅	❌	❌
3	inheritance	✅	❌	❌	✅	✅	❌	❌
4	polymorphism	✅	❌	❌	✅	✅	✅	❌
5	java-interfaces	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

12. modifiers

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	java-modifiers	✅	❌	❌	✅	✅	❌	❌
2	default-and-public-modifiers	✅	❌	❌	✅	✅	❌	❌
3	the-private-and-protected-modifiers	✅	❌	❌	✅	✅	❌	❌
4	the-static-modifier	✅	❌	❌	✅	✅	✅	❌
5	the-final-modifier	✅	❌	❌	✅	✅	✅	❌
6	encapsulation	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

13. class-dependency-i

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	loose-and-tight-coupling	✅	❌	❌	✅	✅	❌	❌
2	cohesion	✅	❌	❌	❌	✅	❌	❌
3	do-not-return-references-to-private-mutable-class-members	✅	❌	❌	✅	✅	✅	❌
4	using-an-interface-as-a-parameter	✅	❌	❌	❌	✅	❌	❌
5	default-constructors	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

14. class-dependency-ii

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	uses-of-the-final-keyword	✅	❌	❌	✅	✅	✅	❌
2	sibling-classes	✅	❌	❌	❌	❌	❌	❌
3	utility-classes-and-static-methods	✅	❌	❌	❌	✅	❌	❌
4	use-a-copy-constructor-for-non-immutable-objects	✅	❌	❌	✅	✅	❌	❌
5	be-as-specific-as-possible-when-catching-exceptions	✅	❌	❌	❌	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

15. exceptions-i

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	catch-multiple-exceptions-in-a-single-catch-block	✅	❌	❌	❌	❌	❌	❌
2	avoid-empty-catch-blocks	✅	❌	❌	❌	❌	❌	❌
3	creating-new-exceptions	✅	❌	❌	❌	❌	❌	❌
4	throwing-an-exception	✅	❌	❌	❌	❌	❌	❌
5	the-distinction-between-checked-and-unchecked-exceptions	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

16. exceptions-ii

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	avoid-unnecessary-exception-handling	✅	❌	❌	❌	❌	❌	❌
2	use-descriptive-error-messages-when-catching-exceptions	✅	❌	❌	❌	❌	❌	❌
3	retrieving-the-cause-of-an-exception	✅	❌	❌	❌	❌	❌	❌
4	throwing-chained-exceptions	✅	❌	❌	❌	❌	❌	❌
5	use-standard-exceptions-when-possible	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

17. patterns

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	singleton-pattern	✅	❌	❌	❌	❌	❌	❌
2	static-factory-methods	✅	❌	❌	❌	❌	❌	❌
3	facade-pattern	✅	❌	❌	❌	✅	❌	❌
4	don-t-repeat-yourself-dry-principle	✅	❌	❌	❌	❌	❌	❌
5	hashing	✅	❌	❌	❌	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

18. tips-iv

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	converting-stack-trace-to-a-string	✅	❌	❌	❌	❌	❌	❌
2	getting-time-based-on-time-zones	✅	❌	❌	✅	✅	❌	❌
3	measuring-time	✅	❌	❌	❌	✅	❌	❌
4	use-locale-class-for-internationalisation	✅	❌	❌	❌	❌	❌	❌
5	most-common-reason-behind-stack-overflow-error	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

19. class-interface-tips

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	limit-accessibility-of-fields	✅	❌	❌	✅	✅	❌	❌
2	private-constructors	✅	❌	❌	❌	❌	❌	❌
3	the-distinction-between-overloading-and-overriding-methods	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

20. abstract-keyword

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	compare-classes-and-not-class-names	✅	❌	❌	❌	✅	❌	❌
2	the-abstract-keyword	✅	❌	❌	✅	✅	❌	❌
3	abstract-classes-can-have-static-members	✅	❌	❌	❌	❌	❌	❌
4	abstract-class-vs-interface-in-java	✅	❌	❌	❌	❌	❌	❌
5	template-methods-in-abstract-classes	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

21. immutability

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	defining-static-methods-within-an-interface	✅	❌	❌	✅	✅	❌	❌
2	fields-with-java-reflection-api	✅	❌	❌	✅	✅	❌	❌
3	floating-garbage-and-how-to-deal-with-it	✅	❌	❌	❌	❌	❌	❌
4	increase-permgen-space-as-to-avoid-outofmemory-errors	✅	❌	❌	❌	✅	❌	❌
5	creating-a-defensive-copy-of-an-object-to-guarantee-immutability	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

22. serialization

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	what-is-serialization	✅	❌	❌	❌	✅	❌	❌
2	serializing	✅	❌	❌	✅	✅	❌	❌
3	deserializing	✅	❌	❌	✅	✅	❌	❌
4	serial-version-u-i-d	✅	❌	❌	✅	✅	❌	❌
5	checking-if-a-class-is-serializable	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

23. tips-v

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	java-8-lambda-expressions	✅	❌	❌	✅	✅	❌	❌
2	use-lazy-initialization-to-defer-creating-an-object-until-it-s-used	✅	❌	❌	❌	❌	❌	❌
3	prevent-exceptions-while-logging-data	✅	❌	❌	❌	❌	❌	❌
4	throwing-proper-exceptions-for-unfinished-code	✅	❌	❌	❌	❌	❌	❌
5	generating-a-compact-java-code	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

24. annotations-i

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	what-are-annotations	✅	❌	❌	✅	✅	❌	❌
2	retention-and-inherited-annotations	✅	❌	❌	✅	✅	❌	❌
3	variable-argument-function	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

25. annotations-ii

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	use-javadoc-comments-to-describe-the-purpose-of-a-class-or-method	✅	❌	❌	❌	❌	❌	❌
2	use-override-to-explicitly-indicate-that-a-method-has-been-overridden	✅	❌	❌	❌	❌	❌	❌
3	the-distinction-between-checked-and-unchecked-exceptions	✅	❌	❌	❌	❌	❌	❌
4	using-super-to-access-overriden-methods	✅	❌	❌	❌	❌	❌	❌
5	specifying-an-annotation-retention-policy	✅	❌	❌	❌	❌	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

26. annotations-iii

Insights:

no	name	content	aspects	standards	PQ	RQ	Quiz	done
1	declaring-repeatable-annotation-types	✅	❌	❌	❌	❌	❌	❌
2	including-annotations-in-javadoc	✅	❌	❌	✅	✅	❌	❌
3	restricting-an-annotation-s-application-by-using-target	✅	❌	❌	✅	✅	❌	❌
4	suppressing-warnings-using-suppresswarnings	✅	❌	❌	✅	✅	❌	❌
5	using-the-deprecated-annotation	✅	❌	❌	✅	✅	❌	❌

Exercises:

⚠️ There are no insights in this workout.

Game:

⚠️ There is no game in this workout.

Aspects

Given the insights are tagged with aspects, we can filter over the linear content progression and create learning sub-paths.

These sub-path progressions will most likely not cover all content, but they will ensure and enforce an unified learning experience, tailor for the user wish.

For example, a user might be interested in new additions and updates of a language, rather than introduction lessions. Note that these sub-paths don't take games into consideration

👶 Introduction

If you are being introduced to the topic for the first time

⚠️ There are no insights tagged with this aspect in fundamentals. :warning: There are no exercises tagged with this aspect in fundamentals. :warning: There are no games tagged with this aspect in fundamentals.

💪 Workout

Theory put into practice/that’s how you achieve X points

⚠️ There are no insights tagged with this aspect in fundamentals. :warning: There are no exercises tagged with this aspect in fundamentals. :warning: There are no games tagged with this aspect in fundamentals.

🦑 Deep

Prerequisite knowledge consisting of 2 or more 👶/💪 workouts

⚠️ There are no insights tagged with this aspect in fundamentals. :warning: There are no exercises tagged with this aspect in fundamentals. :warning: There are no games tagged with this aspect in fundamentals.

✨ New

Recently added/gained traction feature

⚠️ There are no insights tagged with this aspect in fundamentals. :warning: There are no exercises tagged with this aspect in fundamentals. :warning: There are no games tagged with this aspect in fundamentals.

🔮 Obscura

Stories, obscure details that don’t specifically relate to a learning objective

⚠️ There are no insights tagged with this aspect in fundamentals. :warning: There are no exercises tagged with this aspect in fundamentals. :warning: There are no games tagged with this aspect in fundamentals.

Content without aspects

1. what-is-java
2. why-should-i-learn-java
3. java-versions
4. java-hello-world
5. compiling-and-running-java-code
6. java-identifiers
7. java-primitives
8. java-strings
9. functions
10. packages
11. difference-between-jre-and-jdk
12. different-types-of-variables-in-java
13. constant-notation
14. ternary-operator
15. use-meaningful-names
16. equals-operation-on-different-data-types
17. from-is-included-while-to-is-excluded
18. multiple-relational-operators
19. prefix-and-postfix-of-increment-operators
20. use-varargs-when-unsure-about-the-number-of-parameters
21. use-comments-to-explain-the-purpose-of-code
22. avoid-excessively-long-comments
23. avoid-similar-names
24. avoid-synonyms-when-naming
25. follow-existing-project-naming-conventions
26. java-8
27. always-specify-type-parameter
28. common-mistake-on-switch-statements
29. how-range-operations-work
30. short-circuit-evaluation
31. there-is-no-such-thing-as-pass-by-reference-in-java
32. the-trade-off-between-short-and-descriptive-names
33. supply-tostring-in-all-classes
34. package-naming-conventions
35. calling-one-constructor-from-another
36. avoid-using-static-variables
37. updating-interfaces-by-using-default-methods
38. instance-methods-are-preferred-over-default-methods
39. using-static-fields
40. using-inner-classes
41. an-interface-s-methods-do-not-need-to-be-declared-as-public
42. two-ways-to-use-an-iterator
43. iterate-without-an-index
44. double-brace-initialization
45. diamond-operator
46. implementing-the-comparable-interface-to-give-objects-a-natural-order
47. java-memory-management
48. distinction-between-stack-and-heap-memory
49. only-objects-that-are-not-referenced-are-to-be-garbage-collected
50. stop-the-world-and-garbage-collection
51. why-java-does-not-have-sizeof-like-c-c
52. what-is-a-class
53. what-is-an-object
54. inheritance
55. polymorphism
56. java-interfaces
57. java-modifiers
58. default-and-public-modifiers
59. the-private-and-protected-modifiers
60. the-static-modifier
61. the-final-modifier
62. encapsulation
63. loose-and-tight-coupling
64. cohesion
65. do-not-return-references-to-private-mutable-class-members
66. using-an-interface-as-a-parameter
67. default-constructors
68. uses-of-the-final-keyword
69. sibling-classes
70. utility-classes-and-static-methods
71. use-a-copy-constructor-for-non-immutable-objects
72. be-as-specific-as-possible-when-catching-exceptions
73. catch-multiple-exceptions-in-a-single-catch-block
74. avoid-empty-catch-blocks
75. creating-new-exceptions
76. throwing-an-exception
77. the-distinction-between-checked-and-unchecked-exceptions
78. avoid-unnecessary-exception-handling
79. use-descriptive-error-messages-when-catching-exceptions
80. retrieving-the-cause-of-an-exception
81. throwing-chained-exceptions
82. use-standard-exceptions-when-possible
83. singleton-pattern
84. static-factory-methods
85. facade-pattern
86. don-t-repeat-yourself-dry-principle
87. hashing
88. converting-stack-trace-to-a-string
89. getting-time-based-on-time-zones
90. measuring-time
91. use-locale-class-for-internationalisation
92. most-common-reason-behind-stack-overflow-error
93. limit-accessibility-of-fields
94. private-constructors
95. the-distinction-between-overloading-and-overriding-methods
96. compare-classes-and-not-class-names
97. the-abstract-keyword
98. abstract-classes-can-have-static-members
99. abstract-class-vs-interface-in-java
100. template-methods-in-abstract-classes
101. defining-static-methods-within-an-interface
102. fields-with-java-reflection-api
103. floating-garbage-and-how-to-deal-with-it
104. increase-permgen-space-as-to-avoid-outofmemory-errors
105. creating-a-defensive-copy-of-an-object-to-guarantee-immutability
106. what-is-serialization
107. serializing
108. deserializing
109. serial-version-u-i-d
110. checking-if-a-class-is-serializable
111. java-8-lambda-expressions
112. use-lazy-initialization-to-defer-creating-an-object-until-it-s-used
113. prevent-exceptions-while-logging-data
114. throwing-proper-exceptions-for-unfinished-code
115. generating-a-compact-java-code
116. what-are-annotations
117. retention-and-inherited-annotations
118. variable-argument-function
119. use-javadoc-comments-to-describe-the-purpose-of-a-class-or-method
120. use-override-to-explicitly-indicate-that-a-method-has-been-overridden
121. the-distinction-between-checked-and-unchecked-exceptions
122. using-super-to-access-overriden-methods
123. specifying-an-annotation-retention-policy
124. declaring-repeatable-annotation-types
125. including-annotations-in-javadoc
126. restricting-an-annotation-s-application-by-using-target
127. suppressing-warnings-using-suppresswarnings
128. using-the-deprecated-annotation