Question

编写一个 Java Applet程序,用以下公式计算数学常数e的x次方:ex = 1 x1/1! x2/2! x3/3!...

Answer 1

import java.applet.Applet;
import java.awt.*;
public class E extends Applet{
public void paint(Graphics g){
int x=6;
double e=0.0,s=1.0,z;
for(int i=1;i<=x;i++){
j=1;j<=i;j++)
s=s*j;
z=i/s;
e=e+z;
}
e=e+1/x;
Double d=new Double(e);
String str=d.toString(e);
g.drawString(str,100,50);
//g.drawString("Dfdf",50,50);
}
}