Merge pull request #1 from RezuanMustafaHasan/feature/calculator

Feature/calculator

Author: RezuanMustafaHasan

src/Calculator.java

@@ -1,6 +1,8 @@
 public class Calculator {
-    public int add(int a, int b) { return a = a + b; }
+
+    public int add(int a, int b) { return a + b; }
     public int subtract(int a, int b) { return a - b; }
+
     public int multiply(int a, int b) { return a * b; }
     public int divide(int a, int b) { return a / b; }
 }