import java.util.Scanner;

/**
 * Created by David on 21/01/2017.
 */
public class Main {

    public static void main(String[] args) {
        int num;

        Scanner in = new Scanner(System.in);
        System.out.println("Enter a num: ");

        num = in.nextInt();

        System.out.print(num);
    }
}

Enter a num:
5
6
3
aasd
1335