[/quote]public class JPA01{
public static void main(String args[]) {
double totalarea;
System.out.printf("圓形面積為：%f \n",calCircle(5));
System.out.printf("三角形面積為：%f \n",calTriangle(10, 5));
System.out.printf("方形面積為：%f \n",calRectangle(5, 10));
totalarea = calCircle(5) + calTriangle(10, 5) + calRectangle(5, 10);
System.out.printf("此圖形面積為：%f \n",totalarea);
}
static double calCircle(int r) {
return r*r*3.1415926;
}
static double calTriangle(int x, int y) {
return x*y/2.0;
}
static double calRectangle(int x, int y) {
return x*y*1.0;
}
}[/code] |
