添加corejava第11版源码

日期：2019-5-22

corejava第11版/v1ch06/anonymousInnerClass/AnonymousInnerClassTest.java

@@ -0,0 +1,51 @@
+package anonymousInnerClass;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.time.*;
+
+import javax.swing.*;
+
+/**
+ * This program demonstrates anonymous inner classes.
+ * @version 1.12 2017-12-14
+ * @author Cay Horstmann
+ */
+public class AnonymousInnerClassTest
+{
+   public static void main(String[] args)
+   {
+      var clock = new TalkingClock();
+      clock.start(1000, true);
+
+      // keep program running until the user selects "OK"
+      JOptionPane.showMessageDialog(null, "Quit program?");
+      System.exit(0);
+   }
+}
+
+/**
+ * A clock that prints the time in regular intervals.
+ */
+class TalkingClock
+{
+   /**
+    * Starts the clock.
+    * @param interval the interval between messages (in milliseconds)
+    * @param beep true if the clock should beep
+    */
+   public void start(int interval, boolean beep)
+   {
+      var listener = new ActionListener()
+         {
+            public void actionPerformed(ActionEvent event)
+            {
+               System.out.println("At the tone, the time is " 
+                  + Instant.ofEpochMilli(event.getWhen()));
+               if (beep) Toolkit.getDefaultToolkit().beep();
+            }
+         };
+      var timer = new Timer(interval, listener);
+      timer.start();
+   }
+}