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Java Do While Loops

Posted by Eugene Paitoo
Eugene Paitoo
3,922 Points

boolean

Hi there,

why does boolean always start with a false?

thanks!

Steve Hunter
Steve Hunter
57,712 Points

Hi Eugene,

I'm not sure what you mean here - can you give me an example to assist?

Steve.

Eugene Paitoo
Eugene Paitoo
3,922 Points

eg.

 int numberOfPutts = 0;
    boolean ballInHole = false;

    do{
      console.printf("Putts Putts %n");
      ballInHole = luck.nextBoolean();
      numberOfPutts ++;
    } while(!ballInHole);

     console.printf("You got it in %d putts %n", numberOfPutts);

[MOD: edited code block - srh]

1 Answer

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi Eugene,

I don't think there's a conspiracy or a best-practice to initialize a boolean to hold a false value. Indeed, in that example code, the outcome of the loop is irrelevant to the initialization value - the boolean could have just been declared at the outset of the code; or set to true.

I'll happily stand corrected, but I don't think there's a best practice to set a boolean to a value of false as a matter of course.

Steve.