update:demo11

com/study/demo11/EventStatistics.java

@@ -0,0 +1,70 @@
+package com.study.demo11;
+
+import java.awt.Button;
+import java.awt.FlowLayout;
+import java.awt.Frame;
+import java.awt.Label;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.Timer;
+import java.util.TimerTask;
+
+public class EventStatistics extends Frame {
+    private Button clickButton;
+    private Label countLabel;
+    private Label periodLabel;
+    private int clickCount = 0;
+    private DateTimeFormatter formatter;
+
+    public EventStatistics() {
+        super("事件统计器");
+        formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+        clickButton = new Button("点击");
+        countLabel = new Label("点击次数：0", Label.CENTER);
+        periodLabel = new Label("统计周期：5秒", Label.CENTER);
+
+        clickButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                incrementClickCount();
+            }
+        });
+
+        setLayout(new FlowLayout());
+        add(clickButton);
+        add(countLabel);
+        add(periodLabel);
+
+        setSize(300, 150);
+        setLocationRelativeTo(null);
+        setVisible(true);
+
+        startStatisticsTimer();
+    }
+
+    private void incrementClickCount() {
+        clickCount++;
+        countLabel.setText("点击次数：" + clickCount);
+    }
+
+    private void startStatisticsTimer() {
+        new Timer().scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                LocalDateTime now = LocalDateTime.now();
+                String statistics = "过去 5 秒内点击次数：" + clickCount;
+                System.out.println(statistics);
+                System.out.println("统计时间点：" + now.format(formatter));
+                clickCount = 0;
+                countLabel.setText("点击次数：0");
+            }
+        }, 5000, 5000);
+    }
+
+    public static void main(String[] args) {
+        new EventStatistics();
+    }
+}