Create calculation.java

calculation.java

@@ -0,0 +1,43 @@
+import java.util.Scanner;
+
+public class Calculator {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int choice;
+        do {
+            System.out.println("\nMenu:");
+            System.out.println("1. Addition");
+            System.out.println("2. Subtraction");
+            System.out.println("3. Multiplication");
+            System.out.println("4. Division");
+            System.out.println("5. Exit");
+            System.out.print("Enter your choice: ");
+            choice = sc.nextInt();
+
+            if(choice >= 1 && choice <= 4){
+                System.out.print("Enter first number: ");
+                double a = sc.nextDouble();
+                System.out.print("Enter second number: ");
+                double b = sc.nextDouble();
+                double result = 0;
+
+                switch(choice){
+                    case 1: result = a + b; break;
+                    case 2: result = a - b; break;
+                    case 3: result = a * b; break;
+                    case 4: 
+                        if(b != 0) result = a / b;
+                        else System.out.println("Cannot divide by zero!");
+                        break;
+                }
+                if(choice != 4 || b != 0) System.out.println("Result: " + result);
+            }
+            else if(choice != 5) {
+                System.out.println("Invalid choice!");
+            }
+
+        } while(choice != 5);
+
+        System.out.println("Calculator Closed.");
+    }
+}