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Think Java - How to Think Like a Computer Scientist

Think Java is an introduction to computer science and programming intended for readers with little or no experience. We start with the most basic concepts and are careful to define all terms when they are first used. The book presents each new idea in a logical progression. Larger topics, like recursion and object-oriented programming, are divided into smaller examples and introduced over the course of several chapters.

Computer Science Engineering

Author: Allen B. Downey
Publisher: lin College
Source: LibreTexts
License: CC BY-NC-SA
Language: EN
Category: Information Technology

Read online Download PDF (open licence)

Contents· 186 sections

01: Objects
1.01: Point Objects
1.02: Attributes
1.03: Objects as Parameters
1.04: Objects as Return Types
1.05: Mutable Objects
1.06: Aliasing
1.07: The null Keyword
1.08: Garbage Collection
1.09: Class Diagrams
1.10: Java Library Source
1.11: Vocabulary
1.12: Exercises
02: Classes
2.01: The Time Class
2.02: Constructors
2.03: More Constructors
2.04: Getters and Setters
2.05: Displaying Objects
2.06: The toString Method
2.07: The equals Method
2.08: Adding Times
2.09: Pure Methods and Modifiers
2.10: Vocabulary
2.11: Exercises
03: Arrays of Objects
3.01: Card Objects
3.02: Card toString
3.03: Class Variables
3.04: The compareTo Method
3.05: Cards are Immutable
3.06: Arrays of Cards
3.07: Sequential Search
3.08: Binary Search
3.09: Tracing the Code
3.10: Recursive Version
3.11: Vocabulary
3.12: Exercises
04: Objects of Arrays
4.01: The Deck Class
4.02: Shuffling Decks
4.03: Selection Sort
4.04: Merge Sort
4.05: Subdecks
4.06: Merging Decks
4.07: Adding Recursion
4.08: Vocabulary
4.09: Exercises
05: Objects of Objects
5.01: Decks and Hands
5.02: CardCollection
5.03: Inheritance
5.04: Dealing Cards
5.05: The Player Class
5.06: The Eights Class
5.07: Class Relationships
5.08: Vocabulary
5.09: Exercises
06: Appendix A - Development Tools
6.01: Installing DrJava
6.02: DrJava Interactions
6.03: Command-line Interface
6.04: Command-line Testing
6.05: Running Checkstyle
6.06: Tracing With a Debugger
6.07: Testing with JUnit
6.08: Vocabulary
07: Appendix B - Java 2D Graphics
7.01: Creating Graphics
7.02: Graphics Methods
7.03: Example Drawing
7.04: Vocabulary
7.05: Exercises
08: Appendix C - Debugging
8.01: Compile-time Errors
8.02: Run-time Errors
8.03: Logic Errors
09: The Way of the Program
9.01: What Is Programming
9.02: What Is Computer Science
9.03: Programming Languages
9.04: The Hello World Program
9.05: Displaying Strings
9.06: Escape Sequences
9.07: Formatting Code
9.08: Debugging Code
9.09: Vocabulary
9.10: Exercises
10: Variables and Operators
10.01: Declaring Variables
10.02: Assignment
10.03: State Diagrams
10.04: Printing Variables
10.05: Arithmetic Operators
10.06: Floating-Point Numbers
10.07: Rounding Errors
10.08: Operators for Strings
10.09: Composition
10.10: Types of Errors
10.11: Vocabulary
10.12: Exercises
11: Input and Output
11.01: The System Class
11.02: The Scanner Class
11.03: Program Structure
11.04: Inches to Centimeters
11.05: Literals and Constants
11.06: Formatting Output
11.07: Centimeters to Inches
11.08: Modulus Operator
11.09: Putting It All Together
11.10: The Scanner Bug
11.11: Vocabulary
11.12: Exercises
12: Void Methods
12.01: Math Methods
12.02: Composition Revisited
12.03: Adding New Methods
12.04: Flow of Execution
12.05: Parameters and Arguments
12.06: Multiple Parameters
12.07: Stack Diagrams
12.08: Reading Documentation
12.09: Writing Documentation
12.10: Vocabulary
12.11: Exercises
13: Conditionals and Logic
13.01: Relational Operators
13.02: Logical Operators
13.03: Conditional Statements
13.04: Chaining and Nesting
13.05: Flag Variables
13.06: The Return Statement
13.07: Validating Input
13.08: Recursive Methods
13.09: Recursive Stack Diagrams
13.10: Binary Numbers
13.11: Vocabulary
13.12: Exercises
14: Value Methods
14.01: Return Values
14.02: Writing Methods
14.03: Method Composition
14.04: Overloading
14.05: Boolean Methods
14.06: Javadoc Tags
14.07: More Recursion
14.08: Leap of Faith
14.09: One More Example
14.10: Vocabulary
14.11: Exercises
15: Loops
15.01: The while Statement
15.02: Generating Tables
15.03: Encapsulation and Generalization
15.04: More Generalization
15.05: The for Statement
15.06: The do-while Loop
15.07: Break and Continue
15.08: Vocabulary
15.09: Exercises
16: Arrays
16.01: Creating Arrays
16.02: Accessing Elements
16.03: Displaying Arrays
16.04: Copying Arrays
16.05: Array Length
16.06: Array Traversal
16.07: Random Numbers
16.08: Traverse and Count
16.09: Building a Histogram
16.10: The Enhanced for Loop
16.11: Vocabulary
16.12: Exercises
17: Strings and Things
17.01: Characters
17.02: Strings Are Immutable
17.03: String Traversal
17.04: Substrings
17.05: The indexOf Method
17.06: String Comparison
17.07: String Formatting
17.08: Wrapper Classes
17.09: Command-line Arguments
17.10: Vocabulary
17.11: Exercises