pro.java

200多个自己编的java程序,大家可以学一下.

//this pro will display the mouse x,y
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class pro implements MouseMotionListener,MouseListener,KeyListener
{
        Label statusBar=new Label();
        private Frame f;
        String ch="";
  JPanel jPanel1 = new JPanel();
  JMenuBar jMenuBar1 = new JMenuBar();
  JMenu jMenu1 = new JMenu();
  JMenuItem jMenuItem1 = new JMenuItem();
  JMenuItem jMenuItem2 = new JMenuItem();
  JMenuItem jMenuItem3 = new JMenuItem();

        public void go(){
                f=new Frame("Example");
                f.add("South",statusBar);
                f.addMouseListener(this);
                f.addMouseMotionListener(this);
                f.setSize(200,200);
                f.show();

        }

        //mouse implement realization
        public void mouseClicked(MouseEvent e){}
        public void mouseEntered(MouseEvent e){}
        public void mouseExited(MouseEvent e){}
        public void mousePressed(MouseEvent e){}
        public void mouseReleased(MouseEvent e){}


        public void mouseDragged(MouseEvent e){
                int x=e.getX();
                int y=e.getY();
                String status="("+x+","+y+")"+ch;//why
                //maybe it will make it to a String
                statusBar.setText(status);

        }
        public void mouseMoved(MouseEvent e){
                int x=e.getX();
                int y=e.getY();
                String status="(x="+x+",y="+y+")"+ch;//why
                //maybe it will make it to a String
                statusBar.setText(status);
        }
        public void keyTyped(KeyEvent k){
        }
        public void keyPressed(KeyEvent k)
        {
                int charcode=k.getKeyCode();
                if(charcode==KeyEvent.VK_SHIFT)ch="s";
                if(charcode==KeyEvent.VK_CONTROL)ch="c";


        }
        public void keyReleased(KeyEvent k)
        {
                ch="";
        }
        public static void main(String[] args){
                pro mwin=new pro();
                mwin.go();

        }

  public pro() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    jMenuItem1.setText("exit");
    jMenuItem2.setText("hello");
    jMenuItem3.setText("name");
    jMenuBar1.add(jMenu1);
    jMenu1.add(jMenuItem1);
    jMenu1.add(jMenuItem2);
    jMenu1.add(jMenuItem3);
  }

}