exam5_10.java

JAVA程序 。。

import java.applet. *;
import java.awt. *;
import java.awt.event. *;
/*<applet code="Exam5_10.class" width=500 height=500>
</applet>*/

public class Exam5_10 extends Applet implements KeyListener,MouseListener
{
myCanvas cv;
TextField text;
String str=" ";
public void init()
{cv=new myCanvas();
cv.addKeyListener(this);
cv.addMouseListener(this);
text=new TextField(10);
add(text);
add(cv);
}
public void keyTyped(KeyEvent e)
{
text.setText("KeyTyped");
str+=e.getKeyChar();
cv.getGraphics().drawString(str,10,20);
}
public void keyPressed(KeyEvent e)
{}
public void keyReleased(KeyEvent e)
{text.setText("keyReleased");}
public void mouseClicked(MouseEvent e)
{text.setText("MouseClicked");}
public void mousePressed(MouseEvent e)
{text.setText("MousePressed");
}
public void mouseReleased(MouseEvent e)
{text.setText("MouseReleased");
}
public void mouseEntered(MouseEvent e)
{text.setText("MouseEntered");
}
public void mouseExited(MouseEvent e)
{text.setText("MouseExited");
}
class myCanvas extends Canvas
{public myCanvas()
{
setSize(new Dimension(100,100));
setBackground(Color.pink);
}
}
}