SAMS Teach Yourself Programming with Java™ in 24 Hours, FOURTH EDITION

if-else Statements

There are times when you want to do something if a condition is true and do something else if the condition is false. You can do this by using the else statement in addition to the if statement, as in the following example:

if (answer == correctAnswer) {
    score += 10;
    System.out.println("That's right. You get 10 points.");
}
else {
    score -= 5;
    System.out.println("Sorry, that's wrong. You lose 5 points.");
}

The else statement does not have a condition listed alongside it, unlike the if statement. Generally, the else statement is matched with the if statement that immediately comes before it in a Java program. You also can use else to chain several if statements together, as in the following example:

 if (grade == 'A') System.out.println("You ...