mainframe.java

一个用Java语言编写的记事本程序

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class MainFrame
			{
				//获得显示器的高度和宽度

				public  static final int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
				public  static final int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
				//设置主画框的缺省宽度和缺省位置
       			private  static int width = screenWidth / 3;
        		private  static int height = screenHeight / 4;
        		private  static int startX = screenWidth / 3;
        		private  static int startY = screenHeight /3;
        		private  static JFrame frame;
        		private  static JPanel contentPane;
        		/////////////////////////////////////////////////////
        		private MainFrame(){}
        		public static void init(String title)
        			{
        				frame = new JFrame(title);
        				frame.setLocation(new Point(startX,startY));
        				contentPane = (JPanel)frame.getContentPane();
        				contentPane.setPreferredSize(new Dimension(width,height));
        				frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        			}
        		public static void init(String title,int w,int h,int x,int y)
        			{
        				width = w;
        				height = h;
        				startX = x;
        				startY = y;
        				init(title);
        			}
        		public static void init(String title,int w,int h,int x,int y,String lookAndFeel)
        			{
        				try
        					{
        						if(lookAndFeel.equalsIgnoreCase("windows"))
        							UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        						else if(lookAndFeel.equalsIgnoreCase("system"))
        							UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        						else if(lookAndFeel.equalsIgnoreCase("motif"))
        							UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
        						else UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());                    
        					}
        				catch(Exception e){}
        				width = w;
        				height = h;
        				startX = x;
        				startY = y;
        				init(title);		
        			}
        		//////////////////////////////////////////////////////////////////////
        		public static void start()
        			{
        				frame.pack();
        				frame.setVisible(true);
        			}
        		////////////////////////////////////////////////////////////////////
        		public static JPanel getContentPane()
        			{
        				return contentPane;
        			}
        		public static JFrame getMainFrame()
        			{
        				return frame;
        			}
			}