大家帮忙看看，java swing问题。

Question

我循环了10次，有10个图片和复选框，但是图片就会相互覆盖，怎样让图片与图片之间有缝隙呢？public class TwoL {    public TwoL(java.util.List<BufferedImage> bim){
      final JDialog dlg=new JDialog((JFrame)null,true);
         JPanel imgPanel=new JPanel(new BorderLayout());
         JPanel cbPane=new JPanel(new GridLayout(0,2));
         for(int i=0;i < bim.size();i++){
             JLabel lb=new JLabel();
             lb.setIcon(new ImageIcon(bim.get(i)));
             JCheckBox cb=new JCheckBox("图片" + i);
             cbPane.add(lb);
             cbPane.add(cb);
         }
         JScrollPane sp=new JScrollPane(cbPane);
         imgPanel.add(sp,BorderLayout.CENTER);         JPanel butPanel=new JPanel();
         JButton ok=new JButton("确定");
         ok.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
System.exit(0);
}
});
         JButton cancel=new JButton("取消");
         cancel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
System.exit(0);
}
});
         butPanel.add(ok);
         butPanel.add(cancel);
         dlg.setUndecorated(true);
         dlg.add(imgPanel);
         dlg.add(butPanel,BorderLayout.SOUTH);
         dlg.setSize(350,300);
         dlg.setLocation(200,200);
         dlg.setVisible(true);
    }
    public static void main(String[] args) {
     List<BufferedImage> bim = new ArrayList<BufferedImage>();
     for(int i=0;i<10;i++){
     bim.add(ImageCut.abscutImg("c:/c.jpg",0,i*20,100,40));    
     }
new TwoL(bim);
}

Answer 1

这一行改一下
JPanel cbPane=new JPanel(new GridLayout(0,2));
改成
JPanel cbPane=new JPanel(new GridLayout(0,2,3,3));

Answer 2

加一句lb.setPreferredSize(new Dimension(100,45));import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;public class TwoL {    public TwoL(java.util.List<BufferedImage> bim){
         final JDialog dlg=new JDialog((JFrame)null,true);
         JPanel imgPanel=new JPanel(new BorderLayout());
         JPanel cbPane=new JPanel(new GridLayout(0,2));
         for(int i=0;i < bim.size();i++){
             JLabel lb=new JLabel();
             lb.setPreferredSize(new Dimension(100,45));
             lb.setIcon(new ImageIcon(bim.get(i)));
             JCheckBox cb=new JCheckBox("图片" + i);
             cbPane.add(lb);
             cbPane.add(cb);
         }
         JScrollPane sp=new JScrollPane(cbPane);
         imgPanel.add(sp,BorderLayout.CENTER);         JPanel butPanel=new JPanel();
         JButton ok=new JButton("确定");
         ok.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                System.exit(0);
            }
        });
         JButton cancel=new JButton("取消");
         cancel.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                System.exit(0);
            }
        });
         butPanel.add(ok);
         butPanel.add(cancel);
         dlg.setUndecorated(true);
         dlg.add(imgPanel);
         dlg.add(butPanel,BorderLayout.SOUTH);
         dlg.setSize(350,300);
         dlg.setLocation(200,200);
         dlg.setVisible(true);
    }
    public static void main(String[] args) {
        List<BufferedImage> bim = new ArrayList<BufferedImage>();
        for(int i=0;i<10;i++){
            bim.add(ImageCut.abscutImg("c:/c.jpg",0,i*20,100,40));            
        }
        new TwoL(bim);
    }}