Thread: duplicating output

I didn't get this problem... However, I am getting another issue. You're not calculating the sum and average using the latest data. Instead of using a 1 and a half while loop, I'd suggest using a do-while loop here.

do
{
     sleephour = this.getDouble("Enter sleep hours (0 to stop):");
     count++;
     sum += sleephour;
     System.out.println("Your average sleep time is " + (sum/count));
} while(sleephour != 0);

I'm using eclipse, and there's nothing in the code that could suggest such an error... maybe you should re-install your IDE and/or Java?

oh world tnx for giving a time to check my error... yah some other says that they dont get any problems
with that... but i dont know why is it happening on my console panel in my IDE...

ahh world... does it have anything to do with .next() or .nextLine() of String class?

It might, but I doubt it. If it did, I would have gotten the same results regardless of the IDE because they all use the same JVM. What version of Java do you have?

hmm.. have you tried running the program straight from the command line?

oh by the way world, have a look at these,

public class Sample {
 
    private static enum Option {YES, NO}
    private Scanner scanner;
 
    private int gameNumber;
    private static int DEFAULT_NUMBER = 10;
 
    public static void main(String[] args) {
 
        Sample samp = new Sample();
 
        samp.start();
    }
 
    public Sample() {
 
        scanner = new Scanner(System.in);
    }
    private void start() {
 
        Option opt;
 
        opt = play(); // prompt the user if he wants to play the game
 
        System.out.print("\n");
 
        setTheNumber(); // ask the user if he wants to set the game number
 
        while (opt == Option.YES) {
 
            // this is where the game take place
            // NOT YET IMPLEMENTED
 
            opt = play(); // this will ask the user if he wants to play again
        }
    }
 
    private Option play() {
 
        String input;
 
        Option op;
 
        System.out.print("Play? (Yes - y, No - n): ");
        input = scanner.next();
 
        if (input.equals("Y") || input.equals("y")) {
 
            op = Option.YES;
        }
        else {
 
            op = Option.NO;
        }
 
        return op;
    }
 
    private void setTheNumber() {
 
        String response;
 
        System.out.print("Set The Number: ");
        response = scanner.nextLine();
 
        if (response.equalsIgnoreCase("y")) {
 
            System.out.print("Enter Your Desired Number: ");
            int num = scanner.nextInt();
 
            gameNumber = num;
        }
        else {
 
            System.out.println("Default" + DEFAULT_NUMBER);
            gameNumber = DEFAULT_NUMBER;
        }
    }
}

this has a different error.. but someone simply told me to do this

                System.out.print("Set The Number: ");
		response = scanner.next(); // its in the part of the .next() method

he says i have to change that one into this one Otherwise it's going to look for the \n.


i think there is something to do with the methods of the scanner class, unlike BuffferedReader,
something about buffer reading... (i dont know much about buffers yet)
anyway the error of this program is that
it Skips a block of a statement(in the setTheNumber() method).



i just want to have some clarification of this kind of erros because i've been encountering this kind of output(errors) since i've been using the
scanner class, and when i write a complex program with lots of code, im having a hard time looking at the part where this error took place