How to break a while loop from an if condition inside the while loop?

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佛祖请我去吃肉 2020-12-20 11:12

I want to break a while loop of the format below which has an if statement. If that if statement is true, the while loop also must break. Any help would be appreciated.

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  • 2020-12-20 11:55

    The break keyword does exactly that. Here is a contrived example:

    public static void main(String[] args) {
      int i = 0;
      while (i++ < 10) {
        if (i == 5) break;
      }
      System.out.println(i); //prints 5
    }
    

    If you were actually using nested loops, you would be able to use labels.

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  • 2020-12-20 11:56
    while(something.hasnext())
    do something...
       if(contains something to process){
          do something...
          break;
       }
    }
    

    Just use the break statement;

    For eg:this just prints "Breaking..."

    while (true) {
         if (true) {
             System.out.println("Breaking...");
             break;
         }
         System.out.println("Did this print?");
    }
    
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  • 2020-12-20 12:17

    An "if" is not a loop. Just use the break inside the "if" and it will break out of the "while".

    If you ever need to use genuine nested loops, Java has the concept of a labeled break. You can put a label before a loop, and then use the name of the label is the argument to break. It will break outside of the labeled loop.

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