Update

src/高级事件处理/WindowStateListener_Example.java

+package 高级事件处理;
+
+// !/usr/bin/env jdk1.8
+// encoding:utf-8
+//@software:IntelliJ IDEA
+//@pack:高级事件处理
+//@user:彭友聪
+//@date:2019/6/25
+//@time:12:59
+//@project:IDEA_JAVA
+//@file:WindowStateListener_Example.java
+//Author:御承扬
+//email:2923616405@qq.com
+
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.WindowEvent;
+import java.awt.event.WindowStateListener;
+
+public class WindowStateListener_Example extends JFrame {
+    public static void main(String[] args) {
+        WindowStateListener_Example frame = new WindowStateListener_Example();
+        frame.setVisible(true);
+    }
+
+    private WindowStateListener_Example() {
+        super();
+        addWindowStateListener(new myWindowStateListener());
+        setTitle("捕获窗体状态事件");
+        setBounds(100, 100, 600, 400);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    }
+
+    private class myWindowStateListener implements WindowStateListener {
+
+        @Override
+        public void windowStateChanged(WindowEvent e) {
+            int oldState = e.getOldState();
+            int newState = e.getNewState();
+            String from;
+            String to;
+            from = getString(oldState);
+            to = getString(newState);
+            System.out.println(from+"->"+to);
+        }
+
+        private String getString(int newState) {
+            String to;
+            switch (newState) {
+                case Frame.NORMAL:
+                    to = "正常化";
+                    break;
+                case Frame.MAXIMIZED_BOTH:
+                    to = "最大化";
+                    break;
+                default:
+                    to = "最小化";
+            }
+            return to;
+        }
+    }
+}