一个十分好的java基础学习的课件

				// ////////////////////////////////////////////////////////
				// 
				// J_SelfLayout.java
				// 
				
				// ////////////////////////////////////////////////////////
				
				import java.awt.*;
				import java.awt.event.*;
				import javax.swing.*; 
				
				public class J_SelfLayout extends JFrame
				{
				
				    public static void main( String args[] )
				    { 
				        J_SelfLayout app = new J_SelfLayout( );
				        app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
				    } // End of method: main
				
				    public J_SelfLayout( )
				    {
				        super("DiagonalLayout Example");
				        Container cp = getContentPane( );
				        J_DiagonalLayout t= new J_DiagonalLayout( );
				        cp.setLayout( t );
				        for(int i = 0; i < 5; i++)
				        {
				            String s= "Button " + (i+1);
				            JButton b = new JButton( s );
				            cp.add(b);
				        } // End of loop: for
				        setSize(320, 200);
				        setVisible(true);
				    } // End of constructor: J_SelfLayout
				
				}  // End of class: J_SelfLayout