4. 8. 4. Labelled breaks breaks out of several levels of nested loops inside a pair of curly braces.
public class Main { public static void main(String args[]) {
int len = 100; int key = 50; int k = 0;
out: { for (int i = 0; i < len; i++) { for (int j = 0; j < len; j++) { if (i == key) { break out;
}
k += 1;
}
}
}
System.out.println(k);
}
}