Clarification from Khalid Mughal's mock exam

[Jaikumar Nair]

Following is one of the questions from the mock test of Khalid Mughal :
Which statements concerning the switch construct are true?
(a) all switch stmts must have a default label
(b) there must be exactly one label for each code segment in a switch statement
(c) the keyword continue can never occur within the body of a switch statement
(d) no case label may follow a default label within a single switch stmt
(e) a character literal can be used as a value for a case label
According to the mock exam "e" is the only correct answer.
But I am quite sure that "c" is also the correct answer. Could someone comment on this.
Regards,
JAI

[Manfred Leonhardt]

Hi Jaikumar,
Check out the following code.

    int i = 5;
    switch( i )
    {
      case 4:
        break;
      case 5:
        for( int j = 0; j < 10; ++j )
        {
          if( j == i )
          {
            continue;
          }
          System.out.println( j );
        }
        break;
      default:
        System.out.println("Hello World!");

Notice the continue statement inside the switch statement?
Try to compile and run it ...
P.S. The continue keyword can be used within loops only!
Regards,
Manfred.

[Nandini Gangopadhyay]

I too think c is a correct answer, if we give a continue, where will it take us, there is no new iteration taking place here. Could someone else clarify too?!!
Nandini

[Cindy Glass]

Per the JLS 14.15 The continue Statement

A continue statement may occur only in a while, do, or for statement; statements of these three kinds are called iteration statements. Control passes to the loop-continuation point of an iteration statement.

[Jaikumar Nair]

Hi Manfred,
I am aware of that and the example that you provided will run.
The option "c" states "the keyword continue can never occur within the body of a switch statement". Is it not a bit ambiguous? Lets take the example you have given. In the code, though "continue" is within the "for...loop", it is appearing within the body of a switch statement. In that respect, option "c" should be true. Do correct me if I am wrong
JAI

[vkswamy venkatachalam]

Hi, jayakumar
Answer c may be wrong.The compiler fails to compile only when
there is 'continue' key word only inside a case.Try the following code.
public class Test1 {
public static void main(String args[]) {
int i = 5;
loop:for(int j=0;j<10;j++){
switch( i ){
case 4:
break;
case 5:
//inserted for knowing what is going inside.
//if U uncomment, donot forget to add { }
//{System.out.println("Inside case 5 : for loop i : "+i);
continue loop;
//if continue without loop and for loop the compiler rejects
default:
System.out.println("Hello World!");
}
System.out.println("end of for loop i : "+i);
}
}
}
the variant of continue works here.so the otion 'c' may be wrong.
Cindy Glass, correct me if I am wrong.
Regards,
vkswami