多选按钮和监听按钮

awt实现多选按钮和多选按钮的监听
第二个例子是用swt实现相同的功能。

awt 代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class JCheckBoxDemo implements ItemListener {
    JFrame f = null;
    JCheckBox c5 = null;
    JCheckBox c6 = null;

    JCheckBoxDemo() {
        f = new JFrame("JCheckBox");
        Container contentPane = f.getContentPane();
        contentPane.setLayout(new GridLayout(2, 1));
        JPanel p1 = new JPanel();
        p1.setLayout(new GridLayout(1, 3));
        //建立一个标题边界，并指定标题名称，其他为默认值。
        p1.setBorder(BorderFactory.
                createTitledBorder("您最喜欢哪一家餐厅呢？"));
        JCheckBox c1 = new JCheckBox("好伦哥");
        JCheckBox c2 = new JCheckBox("凯威啤酒屋");
        JCheckBox c3 = new JCheckBox("牛肉面大王");
        JCheckBox c4 = new JCheckBox("川王府");
        p1.add(c1);
        p1.add(c2);
        p1.add(c3);
        p1.add(c4);
        JPanel p2 = new JPanel();
        p2.setLayout(new GridLayout(2, 1));
        p2.setBorder(BorderFactory.
                createTitledBorder("您喜欢哪种编程语言，请选择："));
        c5 = new JCheckBox("JAVA", new ImageIcon(".\\icons\\x.gif"));
        c6 = new JCheckBox("PHP", new ImageIcon(".\\icons\\x.gif"));

        c5.addItemListener(this);
        c6.addItemListener(this);
        p2.add(c5);
        p2.add(c6);
        contentPane.add(p1);
        contentPane.add(p2);
        f.pack();
        f.show();
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }

    public void itemStateChanged(ItemEvent e) {
        if (e.getStateChange() == e.SELECTED) {
            if (e.getSource() == c5)
                c5.setIcon(new ImageIcon(".\\icons\\r.gif"));
            if (e.getSource() == c6)
                c6.setIcon(new ImageIcon(".\\icons\\r.gif"));

        } else {
            if (e.getSource() == c5)
                c5.setIcon(new ImageIcon(".\\icons\\x.gif"));
            if (e.getSource() == c6)
                c6.setIcon(new ImageIcon(".\\icons\\x.gif"));
        }
    }

    public static void main(String args[]) {
        new JCheckBoxDemo();
    }
}

swt 代码

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

public class SwtCheckBoxDemo {





    SwtCheckBoxDemo() {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Using SWT");
        shell.setSize(350, 280);
        shell.setLayout(new RowLayout());


        //建立一个标题边界，并指定标题名称，其他为默认值。
        Group group1 = new Group(shell, SWT.SHADOW_IN);
        group1.setText("您最喜欢哪一家速食店呢？");
        group1.setLayout(new FillLayout(SWT.VIRTUAL));
        Button  c1=  new Button(group1, SWT.CHECK);
                c1.setText("好伦哥");
        Button  c2=  new Button(group1, SWT.CHECK);
                c2.setText("凯威啤酒屋");
        Button  c3=  new Button(group1, SWT.CHECK);
                c3.setText("牛肉面大王");
                Button  c4=  new Button(group1, SWT.CHECK);
                c4.setText("川王府");

        Group group2 = new Group(shell, SWT.SHADOW_IN);
                group2.setText("您喜欢哪种编程语言，请选择：");
               group2.setLayout(new RowLayout(SWT.VERTICAL));

         final Button c5 = new Button(group2, SWT.CHECK);

         c5.setText("JAVA");
         final Image xgif = new Image(shell.getDisplay(), this.getClass().getResourceAsStream(
         ".\\icons\\x.gif"));
         c5.setImage(xgif);
         final Button  c6=  new Button(group2, SWT.CHECK);
         c6.setText("PHP");
         final Image rgif = new Image(shell.getDisplay(), this.getClass().getResourceAsStream(
         ".\\icons\\r.gif"));
         c6.setImage(xgif);


         c5.addSelectionListener(new SelectionAdapter( ) {
                public void widgetSelected(SelectionEvent e) {
//                  System.out.println(c5.getSelection( ));
                    if(c5.getSelection()==true){
                        c5.setImage(rgif);
                    }else{
                        c5.setImage(xgif);
                    }
                }
            });
            c6.addSelectionListener(new SelectionAdapter( ) {
                public void widgetSelected(SelectionEvent e) {
                    if(c6.getSelection()==true){
                        c6.setImage(rgif);
                    }else{
                        c6.setImage(xgif);
                    }
                }
            });


                shell.open();
                while (!shell.isDisposed()) {
                  if (!display.readAndDispatch()) {
                    display.sleep();
                  }
                }
                display.dispose();
              }

    public static void main(String args[]) {
        new SwtCheckBoxDemo();
    }
}