Java How To Program, Late Objects, 11th Edition

2 Introduction to Java Applications; Input/Output and Operators

Objectives

In this chapter you’ll:

• Write simple Java applications.

• Use input and output statements.

• Learn about Java’s primitive types.

• Understand basic memory concepts.

• Use arithmetic operators.

• Learn the precedence of arithmetic operators.

• Write decision-making statements.

• Use relational and equality operators.

Outline

1. 2.1 Introduction

2. 2.2 Your First Program in Java: Printing a Line of Text

   1. 2.2.1 Compiling the Application

   2. 2.2.2 Executing the Application

3. 2.3 Modifying Your First Java Program

4. 2.4 Displaying Text with printf

5. 2.5 Another Application: Adding Integers

   1. 2.5.1 import Declarations

   2. 2.5.2 Declaring and Creating a Scanner to Obtain User Input from the Keyboard