📄 showaddlistenersframe.html

📁 think in java TIJ-3rd-edition-code.zip
💻 HTML
字号:
<html><head><title>Display page for ShowAddListeners at www.BruceEckel.com</title></head><FONT FACE="Verdana,Tahoma,Arial,Helvetica,Sans"><H2>ShowAddListeners.java</H2><hr></FONT>
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
    width="500" height="400" align="baseline"
    codebase="http://java.sun.com/products/plugin/1.2.2/jinstall-1_2_2-win.cab#Version=1,2,2,0">
<PARAM NAME="code" VALUE="ShowAddListeners.class">
<PARAM NAME="codebase" VALUE=".">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.2.2">
<COMMENT>
    <EMBED type="application/x-java-applet;version=1.2.2" 
       width="500" height="400" align="baseline" 
       code="ShowAddListeners.class" 
       codebase="."
       pluginspage="http://java.sun.com/products/plugin/1.2/plugin-install.html">
    <NOEMBED>
    </COMMENT>
       No Java 2 support for APPLET!!
    </NOEMBED></EMBED>
</OBJECT>
<FONT SIZE="+3"><PRE><B>
//: c13:ShowAddListeners.java
// Display the "addXXXListener" methods of any 
// Swing class.
// &lt;applet code = ShowAddListeners 
// width=500 height=400&gt;&lt;/applet&gt;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.reflect.*;
import java.io.*;
import com.bruceeckel.swing.*;
import com.bruceeckel.util.*;

public class ShowAddListeners extends JApplet {
  Class cl;
  Method[] m;
  String[] n = new String[0];
  JTextField name = new JTextField(25);
  JTextArea results = new JTextArea(40, 65);
  class NameL implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      String nm = name.getText().trim();
      if(nm.length() == 0) {
        results.setText("No match");
        n = new String[0];
        return;
      }
      try {
        cl = Class.forName("javax.swing." + nm);
      } catch(ClassNotFoundException ex) {
        results.setText("No match");
        return;
      }
      m = cl.getMethods();
      // Convert to an array of Strings:
      n = new String[m.length];
      for(int i = 0; i &lt; m.length; i++)
        n[i] = m[i].toString();
      reDisplay();
    }
  } 
  void reDisplay() {
    // Create the result set:
    String[] rs = new String[n.length];
    int j = 0;
    for (int i = 0; i &lt; n.length; i++)
      if(n[i].indexOf("add") != -1 &&
        n[i].indexOf("Listener") != -1)
          rs[j++] = 
            n[i].substring(n[i].indexOf("add"));
    results.setText("");
    for (int i = 0; i &lt; j; i++)
      results.append(
        StripQualifiers.strip(rs[i]) + "\n");
  }
  public void init() {
    name.addActionListener(new NameL());
    JPanel top = new JPanel();
    top.add(new JLabel(
      "Swing class name (press ENTER):"));
    top.add(name);
    Container cp = getContentPane();
    cp.add(BorderLayout.NORTH, top);
    cp.add(new JScrollPane(results));
  }
  public static void main(String[] args) {
    Console.run(new ShowAddListeners(), 500,400);
  }
} ///:~
</B></PRE></FONT></body></html>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -