Java_Concepts__5th_Edition.pdf

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Java Concepts, 5th Edition
Java Concepts
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Java Concepts, 5th Edition
Java Concepts
F IFTH E DITION
Cay Horstmann
SAN JOSE STATE UNIVERSITY
John Wiley & Sons, Inc.
978-0-470-10555-9
Java Concepts
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Java Concepts, 5th Edition
Chapter 1 Introduction
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Chapter 2 Using Objects
Chapter 3 Implementing Classes
Chapter 4 Fundamental Data Types
Chapter 5 Decisions
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226
Chapter 6 Iteration
Chapter 7 Arrays and Array Lists
Chapter 8 Designing Classes
Chapter 9 Interfaces and Polymorphism
Chapter 10 Inheritance
Chapter 11 Input/Output and Exception Handling
Chapter 12 Object-Oriented Design
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586
Chapter 13 Recursion
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626
Chapter 14 Sorting and Searching
Chapter 15 An Introduction to Data Structures
Chapter 16 Advanced Data Structures
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Chapter 17 Generic Programming
Java Concepts
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Java Concepts, 5th Edition
Chapter 18 Graphical User Interfaces
Java Concepts
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Java Concepts, 5th Edition
Chapter 1 Introduction
C HAPTER G OALS
ȗ To understand the activity of programming
ȗ To learn about the architecture of computers
ȗ To learn about machine code and high-level programming languages
ȗ To become familiar with your computing environment and your compiler
ȗ To compile and run your first Java program
ȗ To recognize syntax and logic errors
The purpose of this chapter is to familiarize you with the concept of programming. It
reviews the architecture of a computer and discusses the difference between machine
code and high-level programming languages. Finally, you will see how to compile
and run your first Java program, and how to diagnose errors that may occur when a
program is compiled or executed.
1.1 What Is Programming?
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You have probably used a computer for work or fun. Many people use computers for
everyday tasks such as balancing a checkbook or writing a term paper. Computers are
good for such tasks. They can handle repetitive chores, such as totaling up numbers or
placing words on a page, without getting bored or exhausted. Computers also make
good game machines because they can play sequences of sounds and pictures,
involving the human user in the process.
The flexibility of a computer is quite an amazing phenomenon. The same machine can
balance your checkbook, print your term paper, and play a game. In contrast, other
machines carry out a much narrower range of tasksȌa car drives and a toaster toasts.
To achieve this flexibility, the computer must be programmed to perform each task. A
computer itself is a machine that stores data (numbers, words, pictures), interacts with
devices (the monitor screen, the sound system, the printer), and executes programs.
Chapter 1 Introduction
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