select.java~1~

利用JAVA实现对ACCESS文件的增加、删除、修改功能

import java.lang.*;
import java.applet.Applet;
import java.awt.*;
public class firstApplet extends Applet
{
int x,y,r;
Color c;

public void init()
{
x=0;
y=0;
r=0;
}
public void start()
{
System.out.println("start");
}
public void stop()
{
System.out.println("stop");
}
public void paint(Graphics g)
{
g.setColor(Color.blue);
String str;
float f=12.3456f;
float f1;
f1=(int)(f*100)/100.0f;

g.drawString(Float.toString(f1),25,60);
g.setXORMode(getBackground());
if(x!=0|y!=0|r!=0)
g.drawOval(x,y,r,r);
x=(int)(Math.random()*300);
y=(int)(Math.random()*150);
r=(int)(Math.random()*100);
try{Thread.sleep(100);}
catch(InterruptedException e){}
g.setColor(Color.red);
//g.drawOval(x,y,r,r);
repaint();
}
public void destroy()
{
System.out.println("destroy");
}

}