Thread: stdIn.nextLine(); or stdIn.next(); are pulling the incorrect variables

First off I hope I am in the correct section, I am currently writing a Rock, Paper, Scissors program for my class and I ran into an issue that I don't seem to be able to fix.

Originally Posted by Netbeans Console

How many games should be played in a best of X series? 7
You will be playing 7 matches first one to win 4 games wins.
Player 1: Enter R for Rock, P for Paper, S for Scissors: s
Player 2: Enter R for Rock, P for Paper, S for Scissors: r
S
S

If you notice it doesn't matter what Player 2 inputs, it seems to just automatically pull whatever player 1 put in place.

I have tried adding

stdIn.next();
stdIn.nextInt();
stdIn.nextLine();

To clear the stream, however it doesn't seem to resolve the issue and just forces the user to type on a blank line to proceed. Anyone have any tips?

package assignment4;
 
import java.awt.AWTException;
import java.awt.Robot;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
 
public class Assignment4 {
 
    public static void main(String[] args) {
        String playerOne;
        String playerTwo;
        int userInput;
        int gameCount;
        boolean bestOf = false;
        Scanner stdIn = new Scanner(System.in);
 
        //Best of X Series
        while (!bestOf) {
            System.out.print("How many games should be played in a best of X series? ");
            gameCount = stdIn.nextInt();
            userInput = gameCount % 2;
            if (userInput == 1) {
                System.out.println("You will be playing " + gameCount + " matches first one to win " + ((gameCount / 2) + 1) + " games wins.");
                bestOf = true;
            } else {
                System.out.println("You have entered an invalid number for a best of X series, please enter a new number");
            }
 
        }
        //Clean out the stream
        stdIn.nextLine();
 
        //Turn phase
 
        //PlayerOne's Turn
        System.out.print("Player 1: Enter R for Rock, P for Paper, S for Scissors: ");
        playerOne = stdIn.nextLine();
        playerOne = playerOne.toUpperCase();
 
 
        //Robot to Clear Screen, Pulled from [url=http://stackoverflow.com/questions/7522022/how-to-delete-stuff-printed-to-console-by-system-out-println]java - How to delete stuff printed to console by System.out.println()? - Stack Overflow[/url]
        try {
            Robot clearScreen = new Robot();
            clearScreen.keyPress(17); // Holds CTRL key.
            clearScreen.keyPress(76); // Holds L key.
            clearScreen.keyRelease(17); // Releases CTRL key.
            clearScreen.keyRelease(76); // Releases L key.
        } catch (AWTException ex) {
            Logger.getLogger(Assignment4.class.getName()).log(Level.SEVERE, null, ex);
 
        }
 
        //PlayerTwo's Turn
        System.out.print("Player 2: Enter R for Rock, P for Paper, S for Scissors: ");
        playerTwo = stdIn.nextLine();
        playerTwo = playerOne.toUpperCase();
 
        //Testing Variable
        System.out.println(playerOne);
        System.out.println(playerTwo);
 
    }
}

Originally Posted by kamari0

...it doesn't matter what Player 2 inputs, it seems to just automatically pull whatever player 1 put in place.

Hmmm...

Well, did you actually look (really look) at the place where you calculate the playerTwo value?

Originally Posted by kamari0 with comment added by Zaphod_b

        playerTwo = stdIn.nextLine();
        playerTwo = playerOne.toUpperCase(); //<--- From Zaphod_b: What the ???

Cheers!

Z