kann mir jemand sagen wieso das ned geht und wenn möglich eine Lösung bitte hinschreiben....danke
Code:
import java.awt.*;
import java.io.*;
import java.awt.event.*;
import javax.swing.*;
public class MenuOne extends JFrame
{
CheckboxGroup checkboxgroup1;
Button button1 = new Button("Play");
TextField TextPlayer1 = new TextField("Enter your Name, Player1!");
TextField TextPlayer2 = new TextField("Enter your Name, Player2!");
Checkbox checkbox_single, checkbox_multi;
public MenuOne()
{
ItemListener listener = new ItemListener();
JFrame MenuOne = new JFrame("Menü");
MenuOne.setSize(400, 400);
MenuOne.setContentPane().setBackground(Color.black);
MenuOne.setVisible(true);
MenuOne.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
checkboxgroup1 = new CheckboxGroup();
checkbox_single = new Checkbox("Sinlge Player", false, checkboxgroup1);
add(checkbox_sinlge);
checkbox_single.addItemListener(listener);
checkbox.multi = new Checkbox("Multiplyer",false, checkboxgroup1);
add(checkbox_multi);
chekbox_multi.addItemListener(listener);
}
}