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Thread: Looping

  1. #1
    New to the CF scene
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    Looping

    public static void main(String[] args){
    int oddNo;
    oddNo = getOdd();
    }
    public static int getOdd(){
    int oddNo = 0;
    Scanner sc = new Scanner(System.in);

    while (oddNo % 2 == 0){
    System.out.print("Enter an odd number : ");
    oddNo = sc.nextInt();
    System.out.println("Wrong input ! ");
    }
    if (oddNo % 2 !=0);
    System.out.print("The odd number is : " + oddNo);
    return oddNo;

    }

    however, the output:
    Enter an odd number : 10
    Wrong input !
    Enter an odd number : 8
    Wrong input !
    Enter an odd number : 9
    Wrong input ! (how to remove this?)
    The odd number is : 9

  • #2
    Supreme Master coder! _Aerospace_Eng_'s Avatar
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    First off, this is the Javascript forum NOT the Java forum. Second you mean remove the Wrong input ! part? Well your while loop is checking to see if the int you put in is even. If it is then take in another int and print out the message. Your loop will always print out that line only because it has to finish executing before it can move on. You can move that line above your scanner in call or check inside the loop to see if oddNo is odd or even using the same condition for your while loop.
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