线程中的异常“AWT-EventQueue-0不支持的操作

时间:2017-01-25 00:19:55

标签: java swing jframe

嘿伙计们,所以我刚开始练习Java的图形部分,我遇到了一个我从未见过的错误。

我要发布我的代码,然后错误消息的图像会提示我,因为我对实际发生的事情一无所知,我有一个想法,但不要让自己感到困惑,所以我想也许这里有人有类似的问题?多谢你们! (以netbeans开发)

程序在尝试单击任一按钮时运行并抛出此错误,错误消息行指的是代码中包含的覆盖方法的行号

enter image description here

在我运行程序后自动生成覆盖方法 尝试点击两个按钮中的任何一个时,它会抛出错误(上图)和错误

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 *
 * @author Jonathan
 */
class WindowDestroyer extends WindowAdapter
{
    public void window(WindowEvent e)
    {
        System.exit(0);
    }

}
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package game;
import java.awt.Color;
import javax.swing.JButton;
import javax.swing.JFrame;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.Set;



/**
 *
 * @author Jonathan
 */
public class ButtonDemo extends JFrame implements ActionListener
{
    public static final int WIDTH = 400;
    public static final int HEIGHT = 300;
    public ButtonDemo()
    {
        setSize(WIDTH, HEIGHT);
        WindowDestroyer listener = new WindowDestroyer();
        addWindowListener(listener);

        Container contentPane = getContentPane();
        contentPane.setBackground(Color.white);

        contentPane.setLayout(new FlowLayout());

        JButton sunnyButton = new JButton("Sunny");
        sunnyButton.addActionListener(this);
        contentPane.add(sunnyButton);


        JButton cloudyButton = new JButton("Cloudy");
        cloudyButton.addActionListener(this);
        contentPane.add(cloudyButton);
    }
    public void actionPreformed(ActionEvent e)
    {
        String actionCommand = e.getActionCommand();
        Container contentPane = getContentPane();

        if(actionCommand.equals("Sunny"))
            contentPane.setBackground(Color.BLUE);
        else if(actionCommand.equals("Cloudy"))
            contentPane.setBackground(Color.GRAY);
        else
            System.out.println("Error in button interface");

    }

    @Override
    public void actionPerformed(ActionEvent ae) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
}

1 个答案:

答案 0 :(得分:1)

您希望它调用的方法名称不正确。它自动生成

>>> sa([89, 23, 33, 45, 10, 12, 45, 45, 45])
[89, 23, 33, 45, 10, 12, 45, 45, 45]
[10, 45, 45, 45, 45, 45, 45, 45, 45]

因为您宣布:

public void actionPerformed(ActionEvent ae)

不确定" Preformed"手段。 : - )

自动生成的actionPerformed会抛出你提到的异常。