sin.java

java例子

import java.lang.Math;
import java.applet.Applet;
import java.awt.*;

public class Sin extends Applet
{
	double x;
    int i,y;
	public void paint(Graphics g)
	{   
		for(x=Math.PI;x<=3*(Math.PI);x+=(Math.PI)/20)
		{ 
            y=(int)(80+40*(Math.sin(x)));
		    i=(int)(40*x);
            g.drawString("*",i,y);
		 }
    } 
}