how to use scanner to take user input in java

/**
 * @author lautturi.com 
 * Java example: take user input using scanner
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {
		// Create a Scanner object
		Scanner scanner = new Scanner(System.in);

		System.out.println("Enter username");
		String userName = scanner.nextLine();
		System.out.println("The username is: " + userName);
	}
}