Java_input

import java.util.Scanner;
public class Java_input {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        // example_1 -> sum two numbers

        System.out.print("Enter first number: ");
        int num1 = scanner.nextInt();

        System.out.print("Enter second number: ");
        int num2 = scanner.nextInt();

        int sum = num1 + num2;

        System.out.println("The sum is: " + sum);

        // example_2 -> calculate area of rectangle
        System.out.print("Enter the length of the rectangle: ");
        float length = scanner.nextFloat();

        System.out.print("Enter the width of the rectangle: ");
        float width = scanner.nextFloat();

        float area = length * width;

        System.out.println("The area of the rectangle is: " + area);

        // example_3 -> show user info
        System.out.print("Enter your first name: ");
        String firstName = scanner.next();

        System.out.print("Enter your last name: ");
        String lastName = scanner.next();

        System.out.print("Enter your age: ");
        int age = scanner.nextInt();
        scanner.nextLine();

        System.out.print("Enter your gender (Male/Female): ");
        String gender = scanner.nextLine();

        System.out.print("Enter your email address: ");
        String email = scanner.nextLine();
        System.out.println("\n--- User Information ---");
        System.out.println("Full Name : " + firstName + " " + lastName);
        System.out.println("Age       : " + age);
        System.out.println("Gender    : " + gender);
        System.out.println("Email     : " + email);

        // example_4 -> calculate average
        System.out.print("Enter the student's full name: ");
        String fullName = scanner.nextLine();

        System.out.print("Enter marks for Subject 1: ");
        float subject1 = scanner.nextFloat();

        System.out.print("Enter marks for Subject 2: ");
        float subject2 = scanner.nextFloat();

        System.out.print("Enter marks for Subject 3: ");
        float subject3 = scanner.nextFloat();

        float average = (subject1 + subject2 + subject3) / 3;

        System.out.println("\n--- Student Marks Summary ---");
        System.out.println("Student Name: " + fullName);
        System.out.println("Subject 1: " + subject1);
        System.out.println("Subject 2: " + subject2);
        System.out.println("Subject 3: " + subject3);
        System.out.printf("Average Marks: %.2f", average);
    }
}