Fix in methods for multiplication and division

src/main/java/resources/CalculatorResource.java

@@ -15,6 +15,7 @@ public class CalculatorResource {
 /**
  * Method handling HTTP POST requests. The calculated answer to the expression will be sent to the client as
  * plain/text.
+ *
  * @param expression the expression to be solved as plain/text.
  * @return solution to the expression as plain/text or -1 on error
  */
@@ -43,7 +44,7 @@ public class CalculatorResource {
     return result;
 }
 
-    private int multiplication(String equation){
+    public int multiplication(String equation) {
     String[] split = equation.split("*");
 
     int number1 = Integer.parseInt(split[0]);
@@ -52,13 +53,14 @@ public class CalculatorResource {
     return number1 * number2;
 }
 
-    private int division(String equation){
-        String[] split = equation.split("*");
+    public int division(String equation) {
+    String[] split = equation.split("/");
 
     int number1 = Integer.parseInt(split[0]);
     int number2 = Integer.parseInt(split[1]);
 
     return number1 / number2;
+}
 
     /**
      * Method used to calculate a sum expression.