Label, Continue, Break Mock Question

[Mark Spritzler]

Here are two mock questions for you.



1). Given:

 
public class MockQuestion {
    public static void main (String[] args) {
 
        outer:
 
        for (int i = 0; i < 10; i++) {
            if (i == 3) {
                
                inner:
                
                for (int j = 0; j < 3; j++) {
                    System.out.print(j);
                    if (j==1) {
                        break inner;
                    }
                }
            }
            
            if (i == 5) {
                System.out.print("Nine");
            }
            
            if (i == 4) {
                break outer;
            }
            
            System.out.print(i);
        }
    }
}

What is the result?

a). 010123
b). 001123
c). 012013
d). 01Nine0123
e). 0120134Nine56789
f). 0120134Nine


2). Given:

 
public class TestLabel {
 
  public void flowControl() {
    outsideforloop:
    for (int k = 0; k < 5; ++k) {
      loopprocessing: {
        System.out.println("Processing");
        checkcondition: {
          if (k == 3) {
        System.out.println(k+"Before Break");
            break checkcondition;
          }
          System.out.println(k+"Before Continue");
          continue outsideforloop;
          // equivalent to: break loopprocessing;
        }                  // end of checkcondition
        System.out.println("Some More Processing");
      }                    // end of loopprocessing
    }                      // end of for
  }
 
  public static void main(String[] args) {
    TestLabel l = new TestLabel();
    l.flowControl();
  }
}

What is the result?

a). Does not compile.

b). Processing
0Before Continue
Processing
1Before Continue
Processing
2Before Continue
Processing
3Before Break
Some More Processing
Processing
4Before Continue

c). Processing
0Before Break
Processing
1Before Break
Processing
2Before Break
Processing
3Before Continue
Some More Processing
Processing
4Before Break

d). Processing
0Before Continue
Some More Processing
Processing
1Before Continue
Some More Processing
Processing
2Before Continue
Some More Processing
Processing
3Before Break
Processing
4Before Continue
Some More Processing


e). An Exception is thrown.




Good Luck

Mark
[ January 17, 2005: Message edited by: Mark Spritzler ]

[Mike Gershman]

Mark:

Were these questions not supposed to be indented? That's cruel.

[Mark Spritzler]

Aww man, me of all people not using the CODE tags.

Just Shoot me.

Mark

[Poonam Advani]

I think the answer for the first one is "c" i.e. it prints 012013.

[Swapan Mazumdar]

Hi Mark,

I liked your mock Qs. especially the second question was very much twisted. Referring to this question can body explain why

 continue outsideforloop; 

doesn't execute the for loop(coded below) again and again forming an infinite loop

  
for (int k = 0; k < 5; ++k) {   
// your code
}

Can any body comment on this issue.

[Barry Gaunt]

"Can anybody comment on this issue."

It's because the continue is taking you to the ++k and the condition k < 5 is then tried.
[ January 18, 2005: Message edited by: Barry Gaunt ]

[shri mon]

continue does not reset the loop variable.
It will just stop the current iteration and continue with the next one.

[sabah ammar]

just check the max matching executions and use method of elimination for the first answer