“Undefined label” error in java when using labeled break

Question

I\'m trying to analyse a java code and see what it does, but in the \"break label\" line it gives the \"Undefined label\" error. from my understanding java unlike c# allows brea

Answer 1

In your example, you are trying to use break label; as though it were similar to the goto label; syntax in C/C++. This is not how it works in Java.

in Java, the break label; syntax is applicable only when you are using nested loops and you need to break out from an inner loop to one of the outer loops in question.

For example:

outer: while(some condition) {
    inner: while(another condition) {
        innermost: while(yet another condition) {
            if(breaking_condition) {
                break inner;
            } else if (one more breaking condition) {
                break outer;
            }
        }
    }
}

Refer this tutorial from Oracle:

https://docs.oracle.com/javase/tutorial/java/nutsandbolts/branch.html

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Hope this helps!