View difference between Paste ID: cgnQCYEQ and GgQEtMmp

 package Exam_24_04_2016;
 
 import java.util.Scanner;
 
 /**
  * Created by todor on 13.03.2017 г..
  */
 public class P03 {
     public static void main(String[] args) {
         Scanner scan = new Scanner(System.in);
         int num1 = Integer.parseInt(scan.nextLine());
         int num2 = Integer.parseInt(scan.nextLine());
         char operator = scan.nextLine().charAt(0);
         double result = 0;
 
         if (num2 == 0 && (operator == '/' || operator == '%')) {
             System.out.printf("Cannot divide %d by zero", num1);
             return;
         }
 
         switch (operator) {
             case '+':
                 result = num1 + num2;
                 break;
             case '-':
                 result = num1 - num2;
-                if (num2 == 0) {
+
-                    System.out.printf("Cannot divide %d by zero", num1);
+
-                    return;
+
-                }
+
             case '/':
                 result = (double) num1 / num2;
                 System.out.printf("%d / %d = %.2f", num1, num2, result);
                 return;
-                if (num2 == 0) {
+
-                    System.out.printf("Cannot divide %d by zero", num1);
+
-                    return;
+
-                }
+
                 return;
         }
 
         String oddEven = result % 2 == 0 ?  "even" : "odd";
         System.out.printf("%d %s %d = %.0f - %s", num1, operator, num2, result, oddEven);
     }
-        System.out.printf("%d %s %d = %.0f - %s", num1, operator, num2, result, oddOrEven((int) result));
+