Merge pull request #309 from sricharan200/sricharan200-patch-2

Implemented Area Calculator using Java

Java/AreaCalculator.java

@@ -0,0 +1,64 @@
+import java.util.Scanner;
+
+public class AreaCalculator {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        while (true) {
+            System.out.println("Choose a shape to calculate its area:");
+            System.out.println("1. Circle");
+            System.out.println("2. Rectangle");
+            System.out.println("3. Triangle");
+            System.out.println("4. Quit");
+            System.out.print("Enter your choice (1/2/3/4): ");
+
+            int choice = scanner.nextInt();
+
+            switch (choice) {
+                case 1:
+                    calculateCircleArea(scanner);
+                    break;
+                case 2:
+                    calculateRectangleArea(scanner);
+                    break;
+                case 3:
+                    calculateTriangleArea(scanner);
+                    break;
+                case 4:
+                    System.out.println("Exiting the program.");
+                    scanner.close();
+                    System.exit(0);
+                default:
+                    System.out.println("Invalid choice. Please enter a valid option.");
+            }
+        }
+    }
+
+    // Calculate the area of a circle
+    private static void calculateCircleArea(Scanner scanner) {
+        System.out.print("Enter the radius of the circle: ");
+        double radius = scanner.nextDouble();
+        double area = Math.PI * Math.pow(radius, 2);
+        System.out.println("The area of the circle is: " + area);
+    }
+
+    // Calculate the area of a rectangle
+    private static void calculateRectangleArea(Scanner scanner) {
+        System.out.print("Enter the length of the rectangle: ");
+        double length = scanner.nextDouble();
+        System.out.print("Enter the width of the rectangle: ");
+        double width = scanner.nextDouble();
+        double area = length * width;
+        System.out.println("The area of the rectangle is: " + area);
+    }
+
+    // Calculate the area of a triangle
+    private static void calculateTriangleArea(Scanner scanner) {
+        System.out.print("Enter the base length of the triangle: ");
+        double base = scanner.nextDouble();
+        System.out.print("Enter the height of the triangle: ");
+        double height = scanner.nextDouble();
+        double area = 0.5 * base * height;
+        System.out.println("The area of the triangle is: " + area);
+    }
+}