The Conditional Operator and the 'switch' Statement
Read this chapter, which discusses the switch and '?' operators to write conditional statements. As you read this tutorial, you will learn that sometimes it is better to use a 'switch' statement when there are multiple choices to choose from. Under such conditions, an if/else structure can become very long, obscure, and difficult to comprehend. Once you have read the tutorial, you will understand the similarity of the logic used for the 'if/else' statement, '?', and 'switch' statements and how they can be used alternately.
3. Maximum and Minimum
Answer:
The expression is evaluated to 21.
Maximum and Minimum
int a = 7, b = 21;
a > b?a:b
The expression evaluates to the maximum of two values:
- The condition
a > bis false, so - The part after the colon (
:) is evaluated, to 21. - That value is given to the entire conditional expression.
(Usually such an expression is part of a longer statement that does something with the value.)
Here is a program fragment that prints the minimum of two variables.
int a = 7, b = 21;
System.out.println( "The min is: " + (a ______ b?a:b ) );
Other than the blank, the fragment is correct. The value of the conditional expression is used with the concatenation operator + in the println() statement.
Question 3:
Fill in the blank so that the fragment works correctly.