Using Break and a Label to Exit a Loop

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.

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