Java All-in-One For Dummies, 4th Edition

Chapter 4

Making Choices

In This Chapter

Boolean expressions for fun and profit (or is it for fun or profit?)

Your basic, run-of-the-mill if statement

else clauses and else-if statements

Nested if statements

Logical operators

The weird ?: operator

The proper way to do string comparisons

So far in this book, all the programs have run straight through from start to finish without making any decisions along the way. In this chapter, you discover two Java statements that let you create some variety in your programs. The if statement lets you execute a statement or a block of statements only if some conditional test turns out to be true. And the switch statement lets you execute one of several blocks of statements depending on the value of an integer variable.

The if statement relies heavily ...