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Beginning Java

Table of Contents

1. Introducing Java

Preview 1-1
What is Java? 1-2
Why Learn Java? 1-4
A Brief History of Programming Languages 1-5
Let’s Get Started 1-7
Downloading and Installing Java 1-9
JCreator – A Java Development Environment 1-14
Starting JCreator 1-21
Opening a Java Project 1-23
Compiling and Running a Java Project 1-25
Stopping JCreator 1-29
Summary 1-30

2. Java Program Basics

Review and Preview 2-1
Structure of a Java Program 2-2
The Welcome Project (Revisited) 2-4
Some Rules of Java Programming 2-7
Creating Java Projects with JCreator 2-9
Saving Java Projects with JCreator 2-15
Compiling and Running a Java Program 2-16
JCreator and Java Files 2-18
Summary 2-20

3. Your First Java Program

Review and Preview 3-1
Creating a Java Program 3-2
Java - The First Lesson 3-6
Variables 3-6
Variable Names 3-7
Variable Types 3-8
Declaring Variables 3-10
Assignment Statement 3-12
Arithmetic Operators 3-13
String Concatenation 3-17
Comments 3-18
Program Output 3-19
Project - Sub Sandwich Party 3-22
Project Design 3-22
Project Development 3-23
Run the Project 3-28
Other Things to Try 3-29
Summary 3-30

4. Java Project Design, Input Methods

Review and Preview 4-1
Project Design 4-2
Java – The Second Lesson 4-4
Variable Initialization 4-4
Mathematical Functions 4-6
Program Input Methods 4-10
Input Methods Example 4-12
Project – Savings Calculator 4-21
Project Design 4-21
Project Development 4-22
Run the Project 4-25
Other Things to Try 4-27
Summary 4-28

5. Debugging, Decisions, Random Numbers

Review and Preview 5-1
Debugging a Java Project 5-2
Syntax Errors 5-3
Run-Time Errors 5-6
Logic Errors 5-8
Java – The Third Lesson 5-9
Logical Expressions 5-9
Comparison Operators 5-10
Comparing Strings 5-12
Logical Operators 5-14
Decisions – The if Statement 5-19
Random Number Generator 5-25
Project – Guess the Number Game 5-29
Project Design 5-29
Project Development 5-30
Run the Project 5-33
Other Things to Try 5-34
Summary 5-36

6. Java Looping, Methods

Review and Preview 6-1
Java – The Fourth Lesson 6-2
Java Loops 6-2
A Brief Interlude – Guess the Number Game (Revisited) 6-8
Java – The Fourth Lesson (Continued) 6-11
Java Methods 6-11
Project – Lemonade Stand 6-17
Project Design 6-18
Project Development 6-19
Run the Project 6-26
Other Things to Try 6-28
Summary 6-29

7. Arrays, More Java Looping

Review and Preview 7-1
Java – The Fifth Lesson 7-2
Variable Arrays 7-2
Java for Loops 7-5
“Shuffle” Method 7-11
Project – Card Wars 7-18
Project Design 7-18
Project Development 7-19
Run the Project 7-29
Other Things to Try 7-30
Summary 7-31

8. Java Graphics, Mouse Methods

Review and Preview 8-1
Graphic User Interfaces (GUI) 8-2
Java Graphics 8-7
Frames 8-7
Event Methods 8-10
Graphics Coordinates 8-12
Colors 8-13
drawLine Method 8-16
drawRect Method 8-20
fillRect Method 8-22
Graphics Review 8-24
Java – The Sixth Lesson 8-25
Mouse Events 8-25
mousePressed Event 8-25
mouseDragged Event 8-28
Class Level Scope Variables 8-30
Project – Blackboard Fun 8-32
Project Design 8-32
Project Development 8-33
Run the Project 8-43
Other Things to Try 8-44
Summary 8-47

9. Timers, Animation, Keyboard Methods

Review and Preview 9-1
Timer Class 9-2
Java – The Final Lesson 9-13
drawstring Method 9-13
Animation 9-16
Object Disappearance 9-21
Border Crossing 9-24
Object Erasure 9-29
Collision Detection 9-30
Keyboard Methods 9-34
keyPressed Event 9-35
Project – Balloons 9-39
Project Design 9-39
Project Development 9-40
Run the Project 9-56
Other Things to Try 9-57
Summary 9-59

10. More Topics, More Projects 

Preview 10-1
Project 1 – Computer Stopwatch 10-2
New Topic – Timing 10-2
Project 2 – Dice Rolling 10-7
New Topic – Switch Structure 10-8

Project 3 – State Capitals 10-16
Project 4 – Tic-Tac-Toe 10-26
Project 5 – Memory Game 10-36
Bonus - Pong! 10-52