Java How to Program, Early Objects, 11th Edition

7 Arrays and ArrayLists

Objectives

In this chapter you’ll:

• Learn what arrays are.

• Use arrays to store data in and retrieve data from lists and tables of values.

• Declare arrays, initialize arrays and refer to individual elements of arrays.

• Iterate through arrays with the enhanced for statement.

• Pass arrays to methods.

• Declare and manipulate multidimensional arrays.

• Use variable-length argument lists.

• Read command-line arguments into a program.

• Build an object-oriented instructor gradebook class.

• Perform common array manipulations with the methods of class Arrays.

• Use class ArrayList to manipulate a dynamically resizable array-like data structure.

Outline

1. 7.1 Introduction

2. 7.2 Arrays

3. 7.3 Declaring and Creating Arrays

4. 7.4