じゃヴぁ０９０１ - プログラム倉庫

import java.awt.*;
import java.awt.event.*;

class game0901 extends Frame implements Runnable{

int x,y;

public static void main(String [] args) {
        Frame f=new game0901();
        f.setTitle("game0901");
        f.setSize(700,700);
        f.setBackground(Color.yellow);
        f.setVisible(true);
    }

game0901(){

Thread th=new Thread(this);
th.start();
addWindowListener(new stopwin());
}


class stopwin extends WindowAdapter{
    public void windowClosing(WindowEvent we){System.exit(0);}
}  


public void run(){
int t;
x=300;
y=500;
t=0;
while(t<30){
y=y-10;
repaint();
try{
Thread.sleep(100);
}catch(InterruptedException e){}
t=t+1;
}
repaint();
}




public void paint(Graphics g){
g.setColor(Color.black);
g.fillRect(100,100,500,500);
g.setColor(Color.red);
g.fillRect(x,y,10,10);

}

}