✔️ Completed Task 3: Modified program with try-with-resources and InvalidAgeException

src/AgeValidaator.java

+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Scanner;
+
+public class AgeValidaator {
+
+    // Method to validate age
+    public static void validateAge(int age) {
+        if (age <= 0) {
+            throw new InvalidAgeException("Invalid age: Age must be greater than 0.");
+        }
+    }
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        // Try-with-resources block to auto-close FileWriter
+        try (FileWriter writer = new FileWriter("age_output.txt")) {
+            System.out.print("Enter your age: ");
+            int age = scanner.nextInt();
+
+            try {
+                validateAge(age);
+                writer.write("Valid age entered: " + age);
+                System.out.println("Age is valid. Written to file.");
+            } catch (InvalidAgeException e) {
+                writer.write("Error: " + e.getMessage());
+                System.out.println("Exception: " + e.getMessage());
+            }
+
+        } catch (IOException e) {
+            System.out.println("File operation error: " + e.getMessage());
+        }
+    }
+}