Java switch statement rules what will be the Pankaj Gupta Flash Card

Author: Pankaj Gupta

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Question 235 / 297: what will be the output of compiling and running this code:

class TestByte{
public static void main(String arg[])
{
final Integer a=10;
int b=2;
switch(b)
{
case 1: System.out.println("1");
break;
case 2: System.out.println("2");
break;
case a: System.out.println("3");
break;
}
}
}

A compiler error

B prints 2

C Runtime exception is generated.

D prints 3

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Explanation:

variable after case should be a conatant.

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