📄 listframe.html

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<html><head><title>Display page for List at www.BruceEckel.com</title></head>
<FONT FACE="Verdana,Tahoma,Arial,Helvetica,Sans" SIZE="-1">
<FONT FACE="Verdana,Tahoma,Arial,Helvetica,Sans"><H2>List.java</H2><hr></FONT>
<!--"CONVERTED_APPLET"-->
<!-- HTML CONVERTER -->
<OBJECT 
    classid = "clsid:CAFEEFAC-0014-0001-0001-ABCDEFFEDCBA"
    codebase = "http://java.sun.com/products/plugin/autodl/jinstall-1_4_1_01-windows-i586.cab#Version=1,4,1,1"
    WIDTH = "250" HEIGHT = "375" ALIGN = "baseline" >
    <PARAM NAME = CODE VALUE = "List.class" >
    <PARAM NAME = "type" VALUE = "application/x-java-applet;jpi-version=1.4.1_01">
    <PARAM NAME = "scriptable" VALUE = "false">

    <COMMENT>
	<EMBED 
            type = "application/x-java-applet;jpi-version=1.4.1_01" 
            CODE = "List.class"
            WIDTH = "250"
            HEIGHT = "375"
            ALIGN = "baseline"  
	    scriptable = false 
	    pluginspage = "http://java.sun.com/products/plugin/index.html#download">
	    <NOEMBED>
            
            </NOEMBED>
	</EMBED>
    </COMMENT>
</OBJECT>

<!--
<APPLET CODE = "List.class" WIDTH = "250" HEIGHT = "375" ALIGN = "baseline">


</APPLET>
-->


<!--"END_CONVERTED_APPLET"-->

<FONT SIZE="+3"><PRE><B>
//: c14:List.java
// &lt;applet code=List width=250 height=375&gt;&lt;/applet&gt;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
import com.bruceeckel.swing.*;

public class List extends JApplet {
  private String[] flavors = { 
    "Chocolate", "Strawberry", "Vanilla Fudge Swirl", 
    "Mint Chip", "Mocha Almond Fudge", "Rum Raisin",
    "Praline Cream", "Mud Pie" 
  };
  private DefaultListModel lItems=new DefaultListModel();
  private JList lst = new JList(lItems);
  private JTextArea t = 
    new JTextArea(flavors.length, 20);
  private JButton b = new JButton("Add Item");
  private ActionListener bl = new ActionListener() {
    public void actionPerformed(ActionEvent e) {
      if(count &lt; flavors.length) {
        lItems.add(0, flavors[count++]);
      } else {
        // Disable, since there are no more
        // flavors left to be added to the List
        b.setEnabled(false);
      }
    }
  };
  private ListSelectionListener ll =
    new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        if(e.getValueIsAdjusting()) return;
        t.setText("");
        Object[] items=lst.getSelectedValues();
        for(int i = 0; i &lt; items.length; i++)
          t.append(items[i] + "\n");
      }
    };
  private int count = 0;
  public void init() {
    Container cp = getContentPane();
    t.setEditable(false);
    cp.setLayout(new FlowLayout());
    // Create Borders for components:
    Border brd = BorderFactory.createMatteBorder(
      1, 1, 2, 2, Color.BLACK);
    lst.setBorder(brd);
    t.setBorder(brd);
    // Add the first four items to the List
    for(int i = 0; i &lt; 4; i++)
      lItems.addElement(flavors[count++]);
    // Add items to the Content Pane for Display
    cp.add(t);
    cp.add(lst);
    cp.add(b);
    // Register event listeners
    lst.addListSelectionListener(ll);
    b.addActionListener(bl);
  }
  public static void main(String[] args) {
    Console.run(new List(), 250, 375);
  }
} ///:~
</B></PRE></FONT>
</html>
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