package javaDemo1;
public class zz {
?? ?public static void main(String[] args) {
?? ??? ?int r = 5;
?? ??? ?int h = 3;
?? ??? ?int f = 750;
?? ??? ?double tj = 3.14*r*r*h;
?? ??? ?double rj = tj * f;
?? ??? ?System.out.println("體積是"+tj);
?? ??? ?System.out.println("容積是"+rj);
?? ?}
}