Why do we use java.util.Scanner and why do we write class Main in Java?

Hi Krithi,

java.util.Scanner is used to take input from the user, like reading a number or a word from the keyboard.

class Main is the main container for your program. Java code must be inside a class, and the program starts running from the main() method inside that class.

Example:

import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int x = sc.nextInt();
    System.out.println(x);
  }
}

If you have more questions, I am here to help 😊