Java Program to print the square root of any digit

import java.io.*;
import java.util.*;
public class SquareRoot{
    Scanner scan=new Scanner(System.in);
    int num;
    public void input()throws IOException{
        System.out.println("Enter any number: ");
        num=scan.nextInt();
    }

    public void display(){
        System.out.println("Square Root of "+num+" is: "+(Math.sqrt(num)));
    }

    public static void main(String[] args)throws IOException{
        SquareRoot obj=new SquareRoot();
        obj.input();
        obj.display();
    }
}