protocoldemo.java

total是最后的版本。包括的全是最新的物理层和数据链路层。另外还有pro1和pro2的打包程序和调用它们形成的各自的界面程序

/*This program provide a main interface containing all the 6 protocol'
 *Demo cheng. It quan use DesktopMenu to choose the function,and 
 *swith among the 6 protocol's Panel. Every Panel of the protocol 
 *was packed at first,and all the packages can be imported by the 
 *main interface program.
 */ 
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

import chq.Pro1Panel;
import chq.Pro2Panel;

public class ProtocolDemo extends JFrame implements ActionListener{
	private Container c;
	private JMenuBar bar;
	private JMenu fileMenu,choosePMenu,optionMenu,ackMenu,helpMenu;
	private JMenuItem aboutItem,exitItem,runItem,ackItem;
	private JTabbedPane tabbedPane;
	
	private JRadioButtonMenuItem protocolItems[];
	private ButtonGroup protocolGroup;
	
	private Pro1Panel pro1panel;
	private Pro2Panel pro2panel;
	private Pro2Panel pro3panel;
	private JPanel panel4,panel5,panel6;
	private proReceiving threads;
	private int sign[]={0,0,0,0,0,0};
	
   	// set up GUI
   	public ProtocolDemo()
   	{
      	super( "ProtocolDemo" );
      	
      	c=getContentPane();
      	
      	bar = new JMenuBar();  
      	setJMenuBar( bar );  
      
      	// set up File menu and its menu items
      	fileMenu = new JMenu( "File" );
      	fileMenu.setMnemonic('F');

      	//set up exitItem menu item	      
      	exitItem = new JMenuItem( "Exit" );
      	exitItem.setMnemonic( 'x' );
      	fileMenu.add( exitItem );
      	exitItem.addActionListener(this);
      	
      	bar.add( fileMenu );
      	
      	
      	// create Choose Protocol menu, its submenus and menu items
      	choosePMenu = new JMenu( "Choose" );  
      	choosePMenu.setMnemonic('C');

      	// create Protocol submenu
      	String protocols[]={"Protocol 1","Protocol 2","Protocol 3",
      		"Protocol 4","Protocol 5","Protocol 6"};
      	protocolItems = new JRadioButtonMenuItem[ protocols.length ];
      	protocolGroup = new ButtonGroup();
      	
      	// create color radio button menu items
      	for ( int count = 0; count < protocols.length; count++ ) {
         	protocolItems[ count ] = 
            	new JRadioButtonMenuItem( protocols[ count ] );
         	choosePMenu.add( protocolItems[ count ] );
         	protocolGroup.add( protocolItems[ count ] );
         	protocolItems[ count ].addActionListener( this );
		}    
      
		bar.add( choosePMenu );
		
		
		//Create optionMenu and its Menu item
		optionMenu = new JMenu( "Option" );  
      	optionMenu.setMnemonic('O');
      	
      	ackMenu = new JMenu( "getAck" );  
      	ackMenu.setMnemonic('A');
      	      	
      	ackItem = new JMenuItem( "No ack" );
      	ackItem.setMnemonic( 'N' );
      	ackItem.addActionListener(this);
      	ackMenu.add( ackItem );
      	
      	optionMenu.add(ackMenu);
      	
      	bar.add(optionMenu);
      	
      	
      	//Create helpMenu and its Menu item
		JMenu helpMenu = new JMenu( "Help" );  
      	helpMenu.setMnemonic('H');
      	
      	aboutItem = new JMenuItem( "About" );
      	aboutItem.setMnemonic('A');
      	helpMenu.add( aboutItem );
      	aboutItem.addActionListener(this);
      	
      	bar.add(helpMenu);
		//End of menu
		

      	// create JTabbedPane 
      	tabbedPane = new JTabbedPane();

      	// set up prospanel and add them to JTabbedPane 
      	pro1panel=new Pro1Panel();
      	tabbedPane.addTab( "Protocol 1",null,pro1panel,"A simple perfect channel"); 
      
      	pro2panel=new Pro2Panel();
      	tabbedPane.addTab( "Protocol 2", null, pro2panel,"Protocol 2");
      
      	pro3panel=new Pro2Panel();
      	tabbedPane.addTab( "Protocol 3", null, pro3panel, "Protocol 3" );
	
		panel4=new JPanel();
      	tabbedPane.addTab( "Protocol 4", null, panel4, "Protocol 4" );
		 	
		panel5=new JPanel();
      	tabbedPane.addTab( "Protocol 5", null, panel5, "Protocol 5" );
		
		panel6=new JPanel();
      	tabbedPane.addTab( "Protocol 6", null, panel6, "Protocol 6" );
				
	  	// add JTabbedPane to container
      	c.add( tabbedPane );

      	setSize(700,500);
      	setVisible( true );
      	
	} // end constructor
   
   	public class proReceiving extends Thread{
		int i=0;
		public proReceiving(int count)
		{
			i=count;
		}
		public void run()
        {
            if(i==0) pro1panel.receiving();
        	else if(i==1) pro2panel.waitForEvent();
        	else if(i==2) pro3panel.waitForEvent();
        }
    }
   
   	public void actionPerformed(ActionEvent e)
   	{
   		if(e.getSource()==aboutItem){
   			JOptionPane.showMessageDialog(ProtocolDemo.this,
				"Protocol Simulator:Protocol1-Protocol6\n"+
            	"\tEdited by ChengQuan\n\tCopyRight Reserved\n\tVision 1.1",
                "About", JOptionPane.PLAIN_MESSAGE );
        }
    	
    	if(e.getSource()==exitItem){System.exit( 0 );}
   		
   		for (int count=0;count<protocolItems.length;count++)
   		{
			if(protocolItems[count].isSelected()){
				tabbedPane.setSelectedIndex(count);
				if(sign[count]==0) {				
					threads=new proReceiving(count);
        			threads.start();
        			sign[count]=1;
               	}
            }//end of if Selected
		}//end of for
		
		if(e.getSource()==ackItem){threads.suspend();}
   		
   	}//End of actionPerformed
   	

   	public static void main( String args[] )
   	{
      	ProtocolDemo proDemo = new ProtocolDemo();
      	proDemo.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
   	}

} // end class JTabbedPaneDemo