import java.util.Scanner;

public class ConfigInput {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

// User input for name

String name = getUserInput("Enter your name: ");

// Validate name (handle empty string)

if (name == null || name.trim().isEmpty()) {

System.out.println("Error: Name cannot be empty. Exiting.");

return; // Exit if name is invalid

}

// User input for age

int age = getIntInput("Enter your age: ");

// Validate age (handle negative values)

if (age < 0) {

System.out.println("Error: Age cannot be negative. Exiting.");

return;

}

// User input for email

String email = getUserInput("Enter your email: ");

// Validate email (basic check for @ symbol)

if (email == null || email.trim().isEmpty() || !email.contains("@")) {

System.out.println("Error: Invalid email format. Exiting.");

return;

}

// User input for city

String city = getUserInput("Enter your city: ");

//Validate city (handle empty string)

if (city == null || city.trim().isEmpty()) {

System.out.println("Error: City cannot be empty. Exiting.");

return;

}

// Print the configuration

System.out.println("\nConfiguration:");

System.out.println("Name: " + name);

System.out.println("Age: " + age);

System.out.println("Email: " + email);

System.out.println("City: " + city);

scanner.close();

}

// Helper function to get string input with prompt

public static String getUserInput(String prompt) {

System.out.print(prompt);

return scanner.nextLine(); // Read the entire line

}

// Helper function to get integer input with prompt

public static int getIntInput(String prompt) {

System.out.print(prompt);

try {

return Integer.parseInt(scanner.nextLine());

} catch (NumberFormatException e) {

System.out.println("Error: Invalid integer input. Exiting.");

return -1; // Indicate an error

}

}

}