Just Java™ 2, Fifth Edition

Chapter 5. Names, Arrays, Operators, and Accuracy

• Names

• Expressions

• Arrays

• Operators

• Associativity

• How Accurate Are Calculations?

• Widening and Narrowing Conversions

• What Happens on Overflow?

• The Math Package

• Further Reading

• Some Light Relief—Too Much Bread

This chapter covers more of the language basics: names, arrays, how operators work, and the accuracy you can expect in arithmetic. The chapter finishes up by presenting the standard class java.lang.Math.

Names

What is the difference between an identifier and a name? As we saw in Chapter 4, “Identifiers, Keywords, and Types,” an identifier is just a sequence of letters and digits that don’t match a keyword ...