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1.
Prelude
❱
1.1.
Asking for Help
1.2.
Toy Problems
1.3.
Lies
2.
Getting Started
3.
First Steps
❱
3.1.
Comments
3.2.
Semicolons
3.3.
Formatting
3.4.
Challenges
4.
Local Variables
❱
4.1.
Naming
4.2.
Reassignment
4.3.
Delayed Assignment
4.4.
Types
4.5.
Final Variables
4.6.
Inferred Types
4.7.
Challenges
Data Types I
5.
Booleans
❱
5.1.
And
5.2.
Or
5.3.
Not
5.4.
Operator Precedence
5.5.
Challenges
6.
Integers
❱
6.1.
Integer Literals
6.2.
Addition
6.3.
Subtraction
6.4.
Multiplication
6.5.
Division
6.6.
Remainder
6.7.
Equality
6.8.
Comparison
6.9.
Chained Comparisons
6.10.
Operator Precedence
6.11.
Reassignment
6.12.
Shorthands for Reassignment
6.13.
Limits
6.14.
Challenges
7.
Floating Point Numbers
❱
7.1.
Floating Point Literals
7.2.
Accuracy
7.3.
Addition
7.4.
Subtraction
7.5.
Multiplication
7.6.
Division
7.7.
Equality
7.8.
Comparison
7.9.
Shorthands for Reassignment
7.10.
NaN
7.11.
Positive and Negative Infinity
7.12.
Square Root
7.13.
Conversion to Integers
7.14.
Conversion from Integers
7.15.
Challenges
8.
Characters
❱
8.1.
Character Literals
8.2.
Common Escape Sequences
8.3.
Conversion to Integers
8.4.
Conversion from Integers
8.5.
Unicode
8.6.
Challenges
9.
Strings
❱
9.1.
String Literals
9.2.
Common Escape Sequences
9.3.
The Empty String
9.4.
Multiline String Literals
9.5.
Concatenation
9.6.
Equality
9.7.
Length
9.8.
Access Individual Characters
9.9.
Challenges
Control Flow I
10.
Branching Paths
❱
10.1.
If
10.2.
Else
10.3.
Nested Ifs
10.4.
Else If
10.5.
Relation to Delayed Assignment
10.6.
Conditional Operator
10.7.
Boolean Expressions
10.8.
Challenges
11.
Loops
❱
11.1.
While
11.2.
Endless Loops
11.3.
Break
11.4.
Continue
11.5.
Unreachable Code
11.6.
Do While
11.7.
Nested Loops
11.8.
Labeled Break
11.9.
Labeled Continue
11.10.
Iteration
11.11.
Counting Up
11.12.
Counting Down
11.13.
Iterate over a String
11.14.
Challenges
Data Types II
12.
Arrays
❱
12.1.
Array Initializers
12.2.
Length
12.3.
Access Individual Elements
12.4.
Set Individual Elements
12.5.
Aliasing
12.6.
Reassignment
12.7.
Relation to Final Variables
12.8.
Printing the Contents of an Array
12.9.
Empty Array
12.10.
Difference between Initializer and Literal
12.11.
Challenges
Control Flow II
User Defined Types
13.
Classes
❱
13.1.
Primitive Classes
13.2.
Reference Classes
13.3.
null
13.4.
Class Declaration
13.5.
Naming
14.
Fields
❱
14.1.
Default Values
15.
Methods
❱
15.1.
Arguments
15.2.
Return Values
15.3.
void
16.
Constructors
Light
Rust
Coal
Navy
Ayu
Modern Java
Default Values