Use of Scanner Class in Java

SCANNER CLASS: 

Example 1:

import java.util.Scanner;

public class ScannerEg1 {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter a number");

        int a = sc.nextInt();

        double sq = a * a;

        double rem = sq % 10;

        System.out.println("square is" + sq);

        System.out.println("Last Digit is" + rem);

    }

}

Example 2:

import java.util.*;

public class ScannerEg2 {

    public static void main(String[] args) {

        int n, sq, rem;

        Scanner sc = new Scanner(System.in);

        System.out.println("enter a number");

        n = sc.nextInt();

        sq = n * n;

        System.out.println(sq);

        rem = sq % 10;

        System.out.println(rem);

        if (n == rem) {

            System.out.println("equal");

        } else {

            System.out.println("not equal");

        }

    }

}