hamming.java

用JAVA编写的用以在网络中进行海明码校验的小程序

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class Hamming extends Applet implements TextListener,ActionListener
{
   Label L=new Label("数据：");
   Button B=new Button("海明码");
   int Bit[]={1,0,0,0,1,1,0,0,1,0,0};
   TextField t1=new TextField("1",1);
   TextField t2=new TextField("0",1);
   TextField t3=new TextField("1",1);
   TextField t4=new TextField("1",1);
   TextField t5=new TextField("0",1);
   TextField t6=new TextField("0",1);
   TextField t7=new TextField("1",1);
   TextField T1=new TextField(1);
   TextField T2=new TextField(1);
   TextField T3=new TextField(1);
   TextField T4=new TextField(1);
   TextField T5=new TextField(1);
   TextField T6=new TextField(1);
   TextField T7=new TextField(1);
   TextField T8=new TextField(1);
   TextField T9=new TextField(1);
   TextField T10=new TextField(1);
   TextField T11=new TextField(1);
   public void init()
   {
     setLayout(new GridLayout(2,12));
     add(L);add(t7);add(t6);add(t5);add(t4);add(t3);add(t2);add(t1);
     add(new Label());add(new Label());add(new Label());add(new Label());
     add(B);add(T11);add(T10);add(T9);add(T8);add(T7);add(T6);add(T5);add(T4);add(T3);
     add(T2);add(T1);
     B.addActionListener(this);
     t1.addTextListener(this);
     t2.addTextListener(this);
     t3.addTextListener(this);
     t4.addTextListener(this);
     t5.addTextListener(this);
     t6.addTextListener(this);
     t7.addTextListener(this);
   }
   public void textValueChanged(TextEvent e)
   {
     if(e.getSource()==t7) Bit[0]=Integer.parseInt(t7.getText());
     if(e.getSource()==t6) Bit[1]=Integer.parseInt(t6.getText());
     if(e.getSource()==t5) Bit[2]=Integer.parseInt(t5.getText());
     if(e.getSource()==t4) Bit[4]=Integer.parseInt(t4.getText());
     if(e.getSource()==t3) Bit[5]=Integer.parseInt(t3.getText());
     if(e.getSource()==t2) Bit[6]=Integer.parseInt(t2.getText());
     if(e.getSource()==t1) Bit[8]=Integer.parseInt(t1.getText());
   }
   public void actionPerformed(ActionEvent e)
   {
     if(e.getSource()==B)
     {
       T1.setForeground(Color.red);T2.setForeground(Color.red);
       T3.setForeground(Color.red);T4.setForeground(Color.red);
       T5.setForeground(Color.red);T6.setForeground(Color.red);
       T7.setForeground(Color.red);T8.setForeground(Color.red);
       T9.setForeground(Color.red);T10.setForeground(Color.red);
       T11.setForeground(Color.red);
       T3.setText(Integer.toString(Bit[8]));
       T5.setText(Integer.toString(Bit[6]));
       T6.setText(Integer.toString(Bit[5]));
       T7.setText(Integer.toString(Bit[4]));
       T9.setText(Integer.toString(Bit[2]));
       T10.setText(Integer.toString(Bit[1]));
       T11.setText(Integer.toString(Bit[0]));
       if((Bit[0]+Bit[2]+Bit[4]+Bit[6]+Bit[8])%2==0)
         T1.setText("0");
       else
         T1.setText("1");
       if((Bit[0]+Bit[1]+Bit[4]+Bit[5]+Bit[8])%2==0)
         T2.setText("0");
       else
         T2.setText("1");
       if((Bit[4]+Bit[5]+Bit[6])%2==0)
         T4.setText("0");
       else
         T4.setText("1");
       if((Bit[0]+Bit[1]+Bit[2])%2==0)
         T8.setText("0");
       else
         T8.setText("1");
     }
   }
}