src/com/company/Calc.java

@@ -1,58 +0,0 @@
-package com.company;
-
-
-public class Calc {
-    public static void print(String text) { //this is a small function to makes it easier to print out to terminal
-        System.out.println(text); //similar to python output
-    }
-    //math functions
-    public static double add(String num1, String num2){
-        double add1 = Double.parseDouble(num1);
-        double add2 = Double.parseDouble(num2);
-        return add1 + add2;
-    }
-    public static double sub(String num1, String num2){
-        double sub1 = Double.parseDouble(num1);
-        double sub2 = Double.parseDouble(num2);
-        return sub1 - sub2;
-    }
-    public static double mul(String num1, String num2){
-        double mul1 = Double.parseDouble(num1);
-        double mul2 = Double.parseDouble(num2);
-        return mul1 * mul2;
-    }
-
-    public static double div(String num1, String num2){
-        double div1 = Double.parseDouble(num1);
-        double div2 = Double.parseDouble(num2);
-        if (div2 == 0 || div1 == 0){
-            print("cant divide by zero");
-            print("error code:");
-            return -1;
-        }
-        return div1 / div2;
-    }
-    public static String mulRound(String num1, String num2){
-        double mul1 = Double.parseDouble(num1);
-        double mul2 = Double.parseDouble(num2);
-        return Math.round(mul1 * mul2) + "rounded";
-    }
-    public static String divRemain(String num1, String num2){
-        double div1 = Double.parseDouble(num1);
-        double div2 = Double.parseDouble(num2);
-        if (div2 == 0){
-            print("cant divide by zero");
-            print("error code:");
-            return "-1";
-        }
-        else if (div1 == 0)
-            return "0";
-        else {
-            int div1I = (int) div1;
-            int div2I = (int) div2;
-            int divT = div1I / div2I;
-            return divT + " with remainder of: " + div1 % div2;
-        }
-
-    }
-}

src/com/company/Main.java

@@ -3,51 +3,69 @@ package com.company;
 import java.util.Scanner;
 
 public class Main {
-    @SuppressWarnings("InfiniteLoopStatement")
+    public static void main(String[] args)
-    public static void main(String[] args) {
+    {
-        double total = 0;
+        Scanner in = new Scanner(System.in);
-        String num1;
-        String num2;
         while (true) {
-            Scanner in = new Scanner(System.in);
+            print("Enter first number: ");
-            System.out.println("Enter first number: ");
+            String num1 = in.nextLine();
-            num1 = in.nextLine();
+            print("please enter second number");
-            if (num1.equals("ans") || num1.equals("total")) {
+            String num2 = in.nextLine();
-                num1 = String.valueOf(total);
+            print("Inputs complete");
-            }
+            print("Please input operator");
-            System.out.println("please enter second number");
+            print("+ , - , * or x , /");
-            num2 = in.nextLine();
-            if (num2.equals("ans") || num2.equals("total")) {
-                num2 = String.valueOf(total);
-            }
-            System.out.println("Inputs complete");
-            System.out.println("Please input operator");
-            System.out.println("+ , - , * or x , /");
-            System.out.println("'for rounded multiplication: use '*r', 'Xr' or 'xr'");
-            System.out.println("'for remainder division: use '/R' or '/r'");
             String op = in.nextLine();
 
             switch (op) {
-                case "+" -> {
+                case "+": {
-                    total = Calc.add(num1, num2);
+                    int total = add(num1, num2);
                     System.out.println(total);
                 }
-                case "-" -> {
+                case "-": {
-                    total = Calc.sub(num1, num2);
+                    int total = sub(num1, num2);
                     System.out.println(total);
                 }
-                case "*", "x" -> {
+                case "x": {
-                    total = Calc.mul(num1, num2);
+                    int total = mul(num1, num2);
                     System.out.println(total);
                 }
-                case "/" -> {
+                case "*": {
-                    total = Calc.div(num1, num2);
+                    int total = mul(num1, num2);
                     System.out.println(total);
                 }
-                case "*/", "xR", "xr" -> System.out.println(Calc.mulRound(num1, num2));
+                case "/": {
-                case "/R", "/r" -> System.out.println(Calc.divRemain(num1, num2));
+                    int total = div(num1, num2);
-                default -> System.out.println("Unexpected value: '" + op + "' ...restarting program");
+                    System.out.println(total);
+                }
+                default: print("Unexpected value: " + op + " ...restarting program");
             }
         }
     }
+    private static void print(String text){
+        System.out.println(text);
+    }
+    private static int add(String num1, String num2){
+        int add1 = Integer.parseInt(num1);
+        int add2 = Integer.parseInt(num2);
+        return add1 + add2;
+    }
+    private static int sub(String num1, String num2){
+        int sub1 = Integer.parseInt(num1);
+        int sub2 = Integer.parseInt(num2);
+        return sub1 - sub2;
+    }
+    private static int mul(String num1, String num2){
+        int mul1 = Integer.parseInt(num1);
+        int mul2 = Integer.parseInt(num2);
+        return mul1 * mul2;
+    }
+    private static int div(String num1, String num2){
+        int div1 = Integer.parseInt(num1);
+        int div2 = Integer.parseInt(num2);
+        if (div2 == 0 || div1 == 0){
+            print("cant divide by zero");
+            return -1;
+        }
+        return div1 / div2;
+    }
 }