Discussion
What will be the output of the program?
public class SwitchTest
{
public static void main(String[] args)
{
System.out.println("value =" + switchIt(4));
}
public static int switchIt(int x)
{
int j = 1;
switch (x)
{
case 1: j++;
case 2: j++;
case 3: j++;
case 4: j++;
case 5: j++;
default: j++;
}
return j + x;
}
}
Answer: D
Correct answer: value = 8
Switch labels fall through unless a break intervenes, and here none does. With x = 4 control enters at case 4 and then runs through case 5 and default, so j is incremented three times from 1 to 4. The method returns \( j + x = 4 + 4 = 8 \). Counting only the matching label gives 2 and 6, both of which are offered.
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