Flow of Control - Absolute Java - page 112

Self-Test Exercises (continued)

10. What is the output produced by the following code?

int key = 1;
switch (key + 1)
{
case 1:
System.out.println("Apples");
break ;
case 2:
System.out.println("Oranges");
break ;
case 3:
System.out.println("Peaches");
case 4:
System.out.println("Plums");
break ;
default :
System.out.println("Fruitless");
}

11. What would be the output in Exercise 10 if the fi rst line were changed to the
following?

int key = 3;
12. What would be the output in Exercise 10 if the fi rst line were changed to the
following?

int key = 5;

The Conditional Operator ★
You can embed a branch inside of an expression by using a ternary operator known
as the conditional operator (also called the ternary operator or arithmetic if ).
Its use is reminiscent of an older programming style, and we do not advise using it.
It is included here for the sake of completeness (and in case you disagree with our
programming style).
The conditional operator is a notational variant on certain forms of the if-else
statement. The following example illustrates the conditional operator. Consider the
following if-else statement:

conditional
operator

ternary
operator

arithmetic if

if (n1 > n2)
max = n1;
else
max = n2;