Java GUI之事件监听与处理的匿名类实现措施
发布时间：2021-11-24 18:49:46 所属栏目：教程 来源：互联网
导读：Java GUI之事件监听与处理的匿名类实现方法： package com.sinosuperman.driver; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import jav
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Java GUI之事件监听与处理的匿名类实现方法： package com.sinosuperman.driver; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; public class MainBench { public static void main(String[] args) { JFrame frame = new MyFrame(); } } class MyFrame extends JFrame { private static final long serialVersionUID = 1L; Toolkit tk = Toolkit.getDefaultToolkit(); Dimension d = tk.getScreenSize(); JPanel panel; public MyFrame() { panel = new MyPanel(); this.add(panel); this.setSize((int) d.getWidth() / 2, (int) d.getHeight() / 2); this.setLocation((int) (d.getWidth() - this.getWidth()) / 2, (int) (d.getHeight() - this.getHeight()) / 2); this.setResizable(false); this.setVisible(true); } } class MyPanel extends JPanel { private static final long serialVersionUID = 5263963243638550398L; JButton okBtn; JButton exitBtn; public MyPanel() { this.setLayout(new FlowLayout(FlowLayout.CENTER)); okBtn = new JButton("OK"); exitBtn = new JButton("Exit"); okBtn.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { JOptionPane.showConfirmDialog(null, "Are you sure?"); } }); exitBtn.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int result = JOptionPane.showConfirmDialog(null, "Are you sure to exit?"); if (result == JOptionPane.YES_OPTION) { System.exit(0); } } }); this.add(okBtn); this.add(exitBtn); } }  （编辑：东莞站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
