请高手指点java代码修改

题目write a method IsCircleBigger which accepts three double parameters,rad,wid,and len, and gives a boolean answer to the following question:

Does a cicle with rad have a greater area than a retangle with wid and len？

我写的代码

public static void IsCircleBigger (double rad,double wid,double len) {

boolean answer = false;

double CircleArea;

double RectangleArea;

double r;

double width;

double length;

String input ;

input = JOptionPane.showInputDialog("enter a radius");

r=Double.parseDouble (input);
CircleArea= Math.pI *r*r;

input = JOptionPane.showInputDialog("enter a width ");

width=Double.parseDouble (input);
input = JOptionPane.showInputDialog("enter a length ");

length=Double.parseDouble (input);

RectangleArea = width *length;

if(CircleArea>RectangleArea) {

System.out.println("yes");

else{

System.out.println("NO");

}

}

不知道对不对！

题意你理解错了，我给你改了：

public static boolean IsCircleBigger(double rad, double wid, double len) {
boolean answer = false;
double CircleArea;
double RectangleArea;
// double r;
// double width;
// double length;
// String input;
// input = JOptionPane.showInputDialog("enter a radius");
// r=Double.parseDouble (input);
CircleArea = Math.PI * rad * rad;
// input = JOptionPane.showInputDialog("enter a width ");
// width=Double.parseDouble (input);
// input = JOptionPane.showInputDialog("enter a length ");
// length=Double.parseDouble (input);
RectangleArea = wid * len;
if (CircleArea > RectangleArea) {
System.out.println("yes");
return true;
} else {
System.out.println("NO");
return false;
}
}

public static void main(String args[]) {
IsCircleBigger(1,2,3);
}