@@ -0,0 +1,148 @@
+package homework;%0A%0Apublic class RectangleArea %7B%0A%0A%09public static long rectangleArea(int a, int b) %7B%0A%09%09%09%09%0A%09%09long area = a * b;%0A%09%09%0A%09%09return area;%0A%09%7D%0A%7D%0A

add rectangle area calculator