employeelists.java

Java程序设计技巧与开发实例附书源代码。

import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Container;
import javax.swing.*;

public class EmployeeLists
    extends JFrame {
  protected JButton hire = new JButton("Hire");
  protected JButton fire = new JButton("Fire");
  protected JButton restore = new JButton("Restore");
  protected JTextField name = new JTextField();
  protected DefaultListModel peopleData = new DefaultListModel();
  protected DefaultListModel toFireData = new DefaultListModel();
  protected JList peopleList = new JList(peopleData);
  protected JList toFireList = new JList(toFireData);

  public EmployeeLists() {
    super("JList Test");

    JPanel buttons = new JPanel(new FlowLayout());
    buttons.add(hire);
    buttons.add(fire);
    buttons.add(restore);

    JPanel input = new JPanel(new BorderLayout());
    input.add("Center", new JPanelBox(name, "Employee Name"));
    input.add("East", new JPanelBox(buttons, "Action"));

    JScrollPane peoplePane = new JScrollPane(peopleList);
    JScrollPane toFirePane = new JScrollPane(toFireList);
    peoplePane.setPreferredSize(new Dimension(200, 200));
    toFirePane.setPreferredSize(new Dimension(200, 200));

    Container content = getContentPane();
    content.setLayout(new BorderLayout());
    content.add("North", input);
    content.add("East", new JPanelBox(toFirePane, "Probation List"));
    content.add("West", new JPanelBox(peoplePane, "Employees List"));

    peopleList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    toFireList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

    EmployeeEventHandler handler = new EmployeeEventHandler(this);
    hire.addActionListener(handler);
    fire.addActionListener(handler);
    restore.addActionListener(handler);
    name.addActionListener(handler);
    peopleList.addListSelectionListener(handler);
    addWindowListener(handler);

    validate();
    pack();
    setVisible(true);
  }

  public static void main(String args[]) {
    EmployeeLists jlt = new EmployeeLists();
  }
}