Create Calculator.java

Author: AFJGitHubDev24

JavaCalculoConvert/Calculator.java

@@ -0,0 +1,56 @@
+import java.util.Scanner;
+
+public class Calculator {
+    public static void main(String[] args){
+        
+        // A SIMPLE CALCULATOR USING JAVA WITH ENHANCED SWITCHES
+
+        Scanner scanner = new Scanner(System.in);
+        
+        // Declare variables
+        double num1;
+        double num2;
+        char operator;
+        double result = 0;
+        boolean validOperation = true;
+        
+        //User prompts for getting the numbers and the operator 
+        System.out.print("Enter the first number: ");
+        num1 = scanner.nextDouble();
+
+        System.out.print("Enter the operator (+, -, *, /, ^): ");
+        operator = scanner.next().charAt(0);
+
+        System.out.print("Enter the second number: ");
+        num2 = scanner.nextDouble();
+        
+        // Enhanced switch along with exceptional cases
+        switch(operator){
+            case '+' -> result = num1 + num2;
+            case '-' -> result = num1 - num2;
+            case '*' -> result = num1 * num2;
+            case '/' -> {
+                if(num2 == 0){
+                    System.out.println("ZeroDivisionError!");
+                    validOperation = false;
+                }
+                else{
+                    result = num1 / num2;
+                }
+            }
+            case '^' -> result = Math.pow(num1, num2);
+            default -> {
+                System.out.println("Invalid operator!");
+                validOperation = false;
+            }
+        }
+
+        // If operator or number is valid (in case of division, then print the result
+        if(validOperation){
+            System.out.printf("%.2f", result);
+        }
+
+        scanner.close();
+
+    }
+}