productdisplay.java

源码为科学出版社出版的英文<java设计模式>(影印版)所用的所有例子程序

import java.awt.*;
import java.awt.event.*;
import java.util.*;
//swing classes
import javax.swing.text.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
import javax.swing.border.*;


public class productDisplay extends JFrame {
    public productDisplay() {
        super("The Java Factory-- Products");
        setLF();             //set look and feel
        setCloseClick();     //set close on window close click
        InputFile f = new InputFile("products.txt");
        Vector prod = new Vector();
        //read in product list
        String s = f.readLine();
        while (s != null) {
            prod.addElement(s);
            s = f.readLine();
        }
        JPanel p = new JPanel();
        getContentPane().add(p);
        p.setLayout(new GridLayout(1,2));

        JPanel pleft = new JPanel();
        JPanel pright = new JPanel();
        p.add(pleft);
        p.add(pright);
        pleft.setLayout(new BorderLayout());
        pright.setLayout(new BorderLayout());

        //add in customer view as list box
        listBridge lList = new listBridge(new productList());
        lList.addData (prod);
        pleft.add("North", new JLabel("Customer view"));
        pleft.add("Center", lList);

        //add in executive view as table
        listBridge lTable = new listBridge(new productTable());
        lTable.addData (prod);
        pright.add("North", new JLabel("Executive view"));
        pright.add("Center", lTable);


        setSize(new Dimension(400,300));
        setVisible(true);
    }
    //-----------------------------------------  
    private void setCloseClick() {
        //create window listener to respond to window close click
        addWindowListener(new WindowAdapter() {
                              public void windowClosing(WindowEvent e) {
                                  System.exit(0);
                              }
                          });
    }
    //------------------------------------------
    private void setLF() {
        // Force SwingApp to come up in the System L&F
        String laf = UIManager.getSystemLookAndFeelClassName();
        try {
            UIManager.setLookAndFeel(laf);
        } catch (UnsupportedLookAndFeelException exc) {
            System.err.println("Warning: UnsupportedLookAndFeel: " + laf);
        } catch (Exception exc) {
            System.err.println("Error loading " + laf + ": " + exc);
        }
    }

    //---------------------------------------------

    static public void main(String argv[]) {
        new productDisplay();
    }
}