java get user input from keyboard

/**
 * @author lautturi.com 
 * Java example: get keyboard input in java
 */

import java.util.*;
import java.io.*;

public class Lautturi {
    
	public static void main(String[] args) throws FileNotFoundException   {
		Scanner scan= new Scanner(System.in);
	    //get int
	    int num= scan.nextInt();
	    System.out.println(num);

	    //get string
//	    String text= scan.nextLine();
//	    System.out.println(text);
	}
}