Question

No two case labels can have the same constant expression value.
a) True
b) False

Answer 1

False. No two case labels can have the same constant expression value.

Step-by-step explanation:

False. No two case labels can have the same constant expression value is true.

When using a switch statement in programming languages such as Java or C++, each case label represents a different possible value of the switch variable. The constant expression in each case label must be unique, otherwise the program will result in a compilation error.

For example, consider the following code:

int day = 3;
switch(day) {
case 1:
System.out.println("Monday");
break;
case 2:
System.out.println("Tuesday");
break;
case 3:
System.out.println("Wednesday");
break;
case 3:
System.out.println("Thursday");
break;
default:
System.out.println("Invalid day");
break;
}

In this code, the duplicate case label 'case 3' will cause a compilation error. To fix this, the case labels must have unique constant expression values.