JButton没有正确删除

Question

我有一个JPanel,其中包含一个带有ActionListener的JButton.经过一定的点击后,需要删除JButton.但是,当我调用remove()时,我得到一个不会消失的按下按钮.

这是我的代码:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class SetuPanel extends JPanel {
   private JTextField user = new JTextField();
   private JLabel label = new JLabel();
   private JButton submit = new JButton("Submit");
   private int phase = 0;
   public SetuPanel() {
      super(new FlowLayout());
      user.setPreferredSize(new Dimension(120,22));
      submit.addActionListener(new Submit());
      label.setText("Enter Desired Username:");
      add(label);
      add(user);
      add(submit);
   }
   private void remov(JComponent jc) {
      remove(jc);
      validate();
   }
   private class Submit implements ActionListener {
      public void actionPerformed(ActionEvent e) {
         System.out.println(user.getText());
         if (phase == 2) {
            phase++;
            label.setText("Playing!");
            remov(submit);
         } 
      }
   }
}

有任何想法吗？

Answer 1

• submit.setVisible(false)如果你需要JButton再次在屏幕上看到这个,请打电话(相反),

• 你必须打电话给容器revalidate()和 repaint()

• JPanel因为你打电话不能直接class extends JPanel进入,所以你必须打电话

.

remove(jc);
revalidate();
repaint()