Help with Rock, Paper, Scissors Program

Question

I need some help with my program, I got understand writing each of the methods I have to do but then i don't understand how to piece it together to make the program work. in the main method...I didn't complete the scrolling message method I just wanted to get the game itself working first then I was going to complete that method. I just need to know if I'm heading in the right direction or if i did something completly wrong
import javax.swing.*;
public class RockPaperScissors
     public static void displayScrollingMessage (String list)
          String header = "Game #\tUser\tComputer\tWinner\t";
     public static void getUserChoice ( )
          int game = 1;
          for ( game = 1; game > 0 ; game ++)
               String input = JOptionPane.showInputDialog ("Choose Rock, Paper, or Scissors\n Enter\n 1 for Rock" +
                                                                                          "\n2 for Paper\n3 for Scissors\n4 to Exit");
               String list = "   ";
               int option = Interger.parseInt (input);
               switch (option)
                    case 1:
                              int userChoice = 1;
                              getComputersChoice ();
                              itemName (userChoice);
                              itemName2 (computersChoice);
                              whowins (userChoice, computersChoice);
                              winnerName (winner);
                              winlose (winner);
                              String list =+ game + "/t" + itemName + "\t" + itemName2 + "\t" + winnerName + "\n";
                              String winner = JOptionPane.showOutputDialog (null, "You picked " + itemName + " and the computer picked "
                                                                                                              + itemName2 + "\nTherefore " + winlose);
                              return userChoice;
                              break;
                    case 2:
                              userChoice = 2;
                              getComputersChoice ();
                              itemName (userChoice);
                              itemName2 (computersChoice);
                              whowins (userChoice, computersChoice);
                              winnerName (winner);
                              winlose (winner);
                              String list =+ game + "\t" + itemName + "\t" + itemName2 + "\t" + winnerName + "\n";
                              String winner = JOptionPane.showOutputDialog (null, "You picked " + itemName + " and the computer picked "
                                                                                                              + itemName2 + "\nTherefore " + winlose);
                              return userChoice;
                              break;
                    case 3:
                              userChoice = 3;
                              getComputersChoice ();
                              itemName (userChoice);
                              itemName2 (computersChoice);
                              whowins (userChoice, computersChoice);
                              winnerName (winner);
                              winlose (winner);
                              String list =+ game + "\t" + itemName + "\t" + itemName2 + "\t" + winnerName + "\n";
                              String winner = JOptionPane.showOutputDialog (null, "You picked " + itemName + " and the computer picked "
                                                                                                              + itemName2 + "\nTherefore " + winlose);                              
                              return userChoice;
                              break;
                    case 4:
                              break;
                    default:
                         JOptionPane.showMessageDialog (null, "Error!! Please enter a valid option!"
                                                                                          , JOptionPane.WARNING_MESSAGE);
                    break;
     public static int getComputersChoice ()
          int computersChoice = (int) (3 * Math.random() + 1);
          return computersChoice;
     public static String itemName (int userChoice)
          if (userChoice == 1)
               String itemName = Rock;
          else
               if (userChoice == 2)
                    String itemName = Paper;
               else
                    if (userChoice == 3)
                         String itemName = Scissors;
          return itemName;
          public static string itemName2 (int computersChoice)
          if (computersChoice == 1)
               String itemName2 = Rock;
          else
               if (computersChoice == 2)
                    String itemName2 = Paper;
               else
                    if (computersChoice == 3)
                         String itemName2 = Scissors;
          return itemName2;
     public static string winlose (int winner)
          if (winner == 1)
               winlose = "You Win!!!";
          else
          if (winner == 2)
               winlose = "You Lose!!";
          else
          if (winner == 3)
               winlose = "Its a Tie!!";
     return winlose;
     public static string winnerName (int winner)
          if (winner == 1)
               String winnerName = "User";
          else
          if (winner == 2)
               String winnerName = "Computer";
          else
          if (winner == 2)
               String winnerName = "Tie";
          return winnerName;
     public static void whoWins (int computersChoice, int userChoice)
          if (userChoice == 1 && computersChoice == 1)
               int winner = 3;
          else
          if (userChoice == 1 && computersChoice == 2)
               int winner = 2;
          else
          if (userChoice == 1 && computersChoice == 3)
               int winner = 1;
          else
          if (userChoice == 2 && computersChoice == 1)
               int winner = 1;
          else
          if (userChoice == 2 && computersChoice == 2)
               int winner = 3;
          else
          if (userChoice == 2 && computersChoice == 3)
               int winner = 2;
          else
          if (userChoice == 3 && computersChoice == 1)
               int winner = 2;
          else {
          if (userChoice == 3 && computersChoice == 2)
               int winner = 1;
          else
          if (userChoice == 3 && computersChoice == 3)
               int winner = 3;
          return winner;
     public static void main (String args [])
          getUserChoice ( );
          System.exit (0);
}

Answer 1

Here's something to compare to
import javax.swing.*;
public class RockPaperScissors
  public RockPaperScissors()
    String[] pick = {"Rock","Paper","Scissors","Exit"};
    int user = 0, computer = 0;
    String result = "", output = "";
    while(user < 3)
      user = JOptionPane.showOptionDialog(null,"Which do you want?",
                           "Rock-Paper-Scissors",-1,-1,null,pick,"");
      if(user == 3) break;
      computer = (int)(3*Math.random());
      result = getWinner(user,computer);
      output = "You chose "+pick[user] + "\nComputer chose " + pick[computer]+
               "\n\nResult:- " + result;
      JOptionPane.showMessageDialog(null,output);        
    System.exit(0);
  public String getWinner(int player, int comp)
    if(Math.abs(player - comp) > 1)
      if(player == 2) player = -1;
      if(comp == 2) comp = -1;
    return player > comp? "You win.":player < comp? "Computer wins.":"Tie.";
  public static void main(String[] args){new RockPaperScissors();}
}