超星 - Quiz for Chapter 3-5 switch Statements

单选题

A break statement is required for a switch-case statement in Java.

A. false
B. true

查看答案

单选题

The default case must be specified in a switch statement.

A. false
B. true

查看答案

单选题

In a switch statement, the default case must appear last among all cases. Otherwise, it would result in a compilation error.

A. false
B. true

查看答案

单选题

Analyze the following program fragment: int x;double d = 1.5; switch (d) {case 1.0: x = 1;case 1.5: x = 2;case 2.0: x = 3;}

A. The program has a compile error because the required default case is missing in the switch statement.
B. No errors.
C. The program has a compile error because the required break statement is missing in the switch statement.
D. The switch control variable cannot be double.

查看答案

单选题

Analyze the following fragment.double x = 0;double d = 1;switch (d + 4) {case 5: x++;case 6: --x;}

A. The required break keyword is missing in the switch statement.
B. d + 4 should be replaced by 5.
C. The switch control variable cannot be double.
D. The required default keyword is missing in the switch statement.

查看答案

单选题