about.java

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

public class About extends JDialog 
{
	    
    //GUI变量定义
	private JFrame parent; 
	private JPanel TextPanel, ButtonPanel;//定义两块面板对象
	//labelPanel用来放标签，fieldsPanel用来放文本区
	private String labels = "关于本系统ABOUT：";
	private JButton OkButton;   
	private JTextArea HelpArea; 
            
	
    public About(JFrame parent, boolean modal) 
    {
        super(parent, modal);
        this.parent = parent;
        pack();
       	GridBagConstraints constraints = new GridBagConstraints();
       	
        OkButton = new JButton( "确  定" );
        OkButton.setPreferredSize(new Dimension(100, 25));
    	OkButton.addActionListener( 
         new ActionListener() 
         { 
            public void actionPerformed( ActionEvent e ) 
            { 
               	setVisible(false);
               	dispose();
            } 
         }   
        ); 
       
    	HelpArea = new JTextArea();
    	HelpArea.setText("	            About             \n\n "+
    					 "     VIP消费管理系统1.0版	      \n"+
    					 "     版权所有，侵权必纠  		  \n"+
    					 "  与我们联系：[e-mail]   \n"
    				     );
    	TextPanel = new JPanel();
		TextPanel.setLayout( new BorderLayout());
		TextPanel.setBorder(BorderFactory.createEtchedBorder());
		TextPanel.add(HelpArea,BorderLayout.CENTER);
		
		ButtonPanel = new JPanel();
		TextPanel.setLayout( new GridBagLayout());
		constraints.weightx = 100;
        constraints.weighty = 100;
        constraints.gridx = 0;
        constraints.gridy = 0;
        constraints.gridwidth = 2;
        constraints.gridheight = 3;
        ButtonPanel.add(OkButton, constraints);
		
 		Container c = getContentPane(); 
      	c.setLayout( new BorderLayout()); 
      	
      	c.add( TextPanel ,BorderLayout.CENTER);
      	c.add( ButtonPanel ,BorderLayout.SOUTH);
      	setTitle("About");
      	setSize( 300, 200 );
      	setResizable(false);
      	setLocation(200,100);
      	
    }
    
   
}