added JavaCalculator\src\com\mateo\main\Calculations.java

Author: mcquerol

JavaCalculator/src/com/mateo/main/Calculations.java

@@ -0,0 +1,53 @@
+package com.mateo.main;
+
+public class Calculations {
+
+	enum Operation {
+		ADD, SUBTRACT, MULTIPLY, DIVIDE, SQUARE,
+	}	
+
+	public static int calculate(Operation op, int A, int B) {
+		switch (op) {
+		case ADD:
+			return add(A, B);
+		case SUBTRACT:
+			return subtract(A, B);
+		case MULTIPLY:
+			return multiply(A, B);
+		case DIVIDE: 
+			return divide(A, B);
+		case SQUARE:
+			return square(A,B);
+		}
+		
+		throw new RuntimeException("Unsupported exception");
+
+	}
+
+
+		private static int add(int a, int b) {
+			// TODO Auto-generated method stub
+			return a + b;
+		}
+
+		private static int multiply(int a, int b) {
+			// TODO Auto-generated method stub
+			return a * b;
+		}
+
+		private static int subtract(int a, int b) {
+			// TODO Auto-generated method stub
+			return a - b;
+		}
+
+		private static int divide(int a, int b) {
+			// TODO Auto-generated method stub
+			return a / b;
+
+		}
+		private static int square(int a, int b) {
+			// TODO Auto-generated method stub
+			return (a*a);
+		}
+
+}