Java Program to print first n Natural number

import java.io.*;
import java.util.*;
public class Natural{
    Scanner scan=new Scanner(System.in);
    int n;
    public void input()throws IOException{
        System.out.println("Enter the limit: ");
        n=scan.nextInt();
    }

    public void compute(){
        if(n>1)
            System.out.println("First "+n+" natural numbers are: ");
        else
            System.out.println("First "+n+" natural number is: ");
        for(int i=1; i<=n; i++)
            System.out.println(i);
    }

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