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Tip of the Day
Language: Java
Expertise: Beginner
Jul 11, 2006

Using Break and a Label to Exit a Loop

Although it is perfectly okay to use a goto to exit a nested loop, many developers prefer not to use gotos. Another way to exit a complicated, nested block of code and go to some specific place is to use the form of the break statement combined with a label. For example:

X:
for (int i = 0; i < x; i++) {
   ...
   Y:
   for (int j = 0; j < y; j++) {
      ...
      Z:
      for (int k = 0; k < z; k++) {
         ...
         if (some_condition) {
            break Y;
         }
      }
   }
   ...
   *
}
If and when some_condition is true, the labeled break statement is executed and the control will pass to the point marked *. Executing the labeled break statement terminates the execution of the statement thus labeled.

Sachin Kainth
 
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