How to break from a loop after the condition is met

break, java, loops, while-loop

Solution

Use the `break` statement to break out of a loop completely once your condition has been met. Pol0nium's suggestion to use `continue` would not be correct since that stops the current iteration of the loop only.

while(foo)
{
    if(baz)
    {
        // Do something
    }
    else
    {
        // exit condition met
        break;
    }
}

All this having been said, good form dictates that you want clean entry and exit points so that an observer (maybe yourself, revisiting the code at a later date) can easily follow its flow. Consider altering the boolean that controls the while loop itself.

while(foo)
{
    if(baz)
    {
        // Do something
    }
    else
    {
        // Do something else
        foo = false;
    }
}

If, for some reason, you can't touch the boolean that controls the while loop, you need only compound the condition with a flag specifically to control your while:

while(foo && bar)
{
    if(baz)
    {
        // Do something
    }
    else
    {
        // Do something else
        bar = false;
    }
}

Problem

Hi I have been trying for the past hour to break from this loop and continue since already met my condition once. My application pretty much reads a serie of lines and analyzes it and then prints the variable stated. An example of how the lines look like (the . are not included): - 10 c = 9+3 - 20 a = c+1 - 30 print c - 40 goto 20 - 50 end It does everything right, when it gets to line 40 goes to line 20 as expected, but i want it to go to line 50 since already went to line 40 once. Here is my code for this part: ``` while(booleanValue) { if(aString.substring(0, 4).equals("goto")) { int chosenLine = Integer.parseInt(b.substring(5)); if(inTheVector.contains(chosenLine)) { analizeCommands(inTheVector.indexOf(chosenLine)); i++; } else { System.ou.println("Line Was Not Found"); i++; } } else if(aString.substring(0, 3).equals("end")) { System.out.println("Application Ended"); booleanValue = false; } } ```

Original source