break & continue

[shilpa gupta]

hi all
can anybody please please tell me as to when these
two can be used.
is it right to write
for(int i = 0; i<3; i++){
continue;//or break;
System.out.println("hi all");
}
please ans this
[This message has been edited by shilpa gupta (edited March 02, 2001).]

[petfishlf]

Hi,the code can not be compiled. Because the line
System.out.println("hi all");
will never be executed.

[Jane Griscti]

Hi Shilpa,
You use <code>continue</code> when you want a loop to jump to the next iteration.
For example,

for( int i=0; i < 5; i++ )
{
   if( i == 3 ) continue;   // start the next iteration
   System.out.println( i ) ;
}
Output:
0
1
2
4

The <code>continue</code> statement causes iteration '3' to be short-circuited.
You use <code>break</code> when you want to jump out of the loop completely.
Example

for( int i=0; i < 5; i++ )
{
   if( i == 3 ) break;   // abort the loop
   System.out.println( i ) ;
}
Output:
0
1
2

Execution of the loop stops when the <code>break</code> is executed.
Hope that helps.
------------------
Jane Griscti
Sun Certified Programmer for the Java� 2 Platform
[This message has been edited by Jane Griscti (edited March 03, 2001).]

[Praful Thakare]

hi
Well the reply of jane will make clear the use of
break & continue but be aware of the following code
for(int i=0;i<=10;++i)
{
try
{
if(i==2)
continue;
System.out.println(i);
}finally
{
System.out.println("oo God Finally I am in Picture");
}
}//End of For
Try the o/p of this code Cause it dosent follow the
Rule of continue
i.e continue says forget abt the following stamt. &
continue with next value of i(in for loop)
but in this case it will first print message of finally
& then continue the loop;
same is the case with following code
public void method()
{
int i=4;
try
{
if(i==4)
return;
}
finally
{
System.out.println("I am Printed heeeeee");
}
}
can u guess the o/p well The stmt of finally will be first
printed & then control will be returned.
this question i faced in my exam.
....praful

[Ishaan Mohan]

Hi,
For all exits(Note this) from a try block, except those due to exceptions, the catch blocks are skipped and control is transfered to the finally block, if one is specified. Even a break statement or continue statement will not overrule this.
For all exits from try block resulting in exceptions, control is transfer to the catch block, if any such blocks are specified. If no catch block matches the thrown exception ,controlled is transferred to the finally block.(Common explaination)