Java-Code

package java_helloworld;

import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

/**
 * Regeln: Schere schneidet Papier; Papier bedeckt Stein; Stein zerquetscht
 * Echse; Echse vergiftet Spock; Spock zertrümmert Schere; Schere köpft Echse;
 * Echse frisst Papier; Papier widerlegt Spock; Spock verdampft Stein; Stein
 * schleift Schere
 */
public class SteinPapierSchereEchseSpock{

	private JFrame frm;
	private JLabel lblHeader;
	private JLabel lblStatus;
	private JPanel pnl;
	public SteinPapierSchereEchseSpock() {
		prepareGUI();
	}

	public static void main(String[] args) {
		SteinPapierSchereEchseSpock spses = new SteinPapierSchereEchseSpock();
		spses.showButton();
	}

	private void prepareGUI() {
		frm = new JFrame("Stein, Papier, Schere, Echse, Spock");
		frm.setSize(400, 400);
		frm.setLayout(new GridLayout(3, 4));
		frm.setLocationRelativeTo(null);
		frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		lblHeader = new JLabel("", JLabel.CENTER);
		lblStatus = new JLabel("", JLabel.CENTER);

		lblStatus.setSize(350, 100);

		pnl = new JPanel();
		pnl.setLayout(new FlowLayout());

		frm.add(lblHeader);
		frm.add(pnl);
		frm.add(lblStatus);
		frm.setVisible(true);
	}

	private void showButton() {

		lblHeader.setText("Bitte wähle Deine Figur");

		JButton btnSchere = new JButton("Schere");
		JButton btnStein = new JButton("Stein");
		JButton btnPapier = new JButton("Papier");
		JButton btnEchse = new JButton("Echse");
		JButton btnSpock = new JButton("Spock");
		
		btnSchere.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int compChoice = (int)(Math.random()*4);
				if (compChoice == 0)
					lblStatus.setText("Unentschieden, probiers nochmal!");
				else if (compChoice == 1)
					lblStatus.setText("Verloren - Stein schleift Schere!");
				else if (compChoice == 2)
					lblStatus.setText("GEWONNEN! Deine Schere schneidet Papier");
				else if (compChoice == 3)
					lblStatus.setText("GEWONNEN! Deine Schere köpft Echse");
				else if (compChoice == 4)
					lblStatus.setText("Verloren - Spock zertrümmert Schere!");
			}
		});
		btnStein.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int compChoice = (int)(Math.random()*4);
				if (compChoice == 0)
					lblStatus.setText("GEWONNEN! Dein Stein schleift Schere");
				else if (compChoice == 1)
					lblStatus.setText("Unentschieden, probiers nochmal!");
				else if (compChoice == 2)
					lblStatus.setText("Verloren - Papier bedeckt Stein!");
				else if (compChoice == 3)
					lblStatus.setText("GEWONNEN! Dein Stein zerquetscht Echse");
				else if (compChoice == 4)
					lblStatus.setText("Verloren - Spock verdampft Stein!");
				
			}
		});
		btnPapier.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int compChoice = (int)(Math.random()*4);
				if (compChoice == 0)
					lblStatus.setText("Verloren - Schere schneidet Papier!");
				else if (compChoice == 1)
					lblStatus.setText("GEWONNEN! Dein Papier bedeckt Stein");
				else if (compChoice == 2)
					lblStatus.setText("Unentschieden, probiers nochmal!");
				else if (compChoice == 3)
					lblStatus.setText("Verloren - Echse frisst Papier!");
				else if (compChoice == 4)
					lblStatus.setText("GEWONNEN! Dein Papier widerlegt Spock");
			}
		});
		btnEchse.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int compChoice = (int)(Math.random()*4);
				if (compChoice == 0)
					lblStatus.setText("Verloren - Schere köpft Echse!");
				else if (compChoice == 1)
					lblStatus.setText("Verloren - Stein zerquetscht Echse!");
				else if (compChoice == 2)
					lblStatus.setText("GEWONNEN! Deine Echse frisst Papier");
				else if (compChoice == 3)
					lblStatus.setText("Unentschieden, probiers nochmal!");
				else if (compChoice == 4)
					lblStatus.setText("GEWONNEN! - Deine Echse vergiftet Spock");			}
		});
		btnSpock.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				int compChoice = (int)(Math.random()*4);
				if (compChoice == 0)
					lblStatus.setText("GEWONNEN! Dein Spock zertrümmert Schere");
				else if (compChoice == 1)
					lblStatus.setText("GEWONNEN! Dein Spock verdampft Stein");
				else if (compChoice == 2)
					lblStatus.setText("Verloren - Papier widerlegt Spock!");
				else if (compChoice == 3)
					lblStatus.setText("Verloren - Echse vergiftet Spock!");
				else if (compChoice == 4)
					lblStatus.setText("Unentschieden, probiers nochmal!");			
				}
		});

		pnl.add(btnSchere);
		pnl.add(btnStein);
		pnl.add(btnPapier);
		pnl.add(btnEchse);
		pnl.add(btnSpock);

		frm.setVisible(true);
	}

}