C# обучение с нуля

//www.VideoSharp.info/Java/Ввод данных/Таблица учеников
import java.util.Scanner;
public class Program
{
    public static void main (String [] args)
    {
String name;
String surn;

Scanner scanner = new Scanner (System.in);
int year = scanner.nextInt ();

int by1 = scanner.nextInt();
name = scanner.next ();
surn = scanner.next ();
String pupil1 = surn + " " + name;

int by2 = scanner.nextInt();
name = scanner.next ();
surn = scanner.next ();
String pupil2 = surn + " " + name;

int by3 = scanner.nextInt();
name = scanner.next ();
surn = scanner.next ();
String pupil3 = surn + " " + name;

int age1 = year - by1;
int age2 = year - by2;
int age3 = year - by3;

System.out.format ("+---+----------------------+---------+%n");
System.out.format ("| № | Фамилия Имя          | Возраст |%n");
System.out.format ("+---+----------------------+---------+%n");
System.out.format ("| 1 | %-20s | %7d |%n", pupil1, age1);
System.out.format ("| 2 | %-20s | %7d |%n", pupil2, age2);
System.out.format ("| 3 | %-20s | %7d |%n", pupil3, age3);
System.out.format ("+---+----------------------+---------+%n");
    }
}

//www.VideoSharp.info/Java/Ввод данных/Таблица учеников
import java.util.Scanner;
public class Program
{
    public static void main (String [] args)
    {
String name;
String surn;

Scanner scanner = new Scanner (System.in);
int year = scanner.nextInt ();

int by1 = scanner.nextInt();
name = scanner.next ();
surn = scanner.next ();
String pupil1 = surn + " " + name;

int by2 = scanner.nextInt();
name = scanner.next ();
surn = scanner.next ();
String pupil2 = surn + " " + name;

int by3 = scanner.nextInt();
name = scanner.next ();
surn = scanner.next ();
String pupil3 = surn + " " + name;

int age1 = year - by1;
int age2 = year - by2;
int age3 = year - by3;

System.out.format ("+---+----------------------+---------+%n");
System.out.format ("| № | Фамилия Имя          | Возраст |%n");
System.out.format ("+---+----------------------+---------+%n");
System.out.format ("| 1 | %-20s | %7d |%n", pupil1, age1);
System.out.format ("| 2 | %-20s | %7d |%n", pupil2, age2);
System.out.format ("| 3 | %-20s | %7d |%n", pupil3, age3);
System.out.format ("+---+----------------------+---------+%n");
    }
}

//www.VideoSharp.info/Java/Структура/Треугольник Паскаля
public class Program
{
    public static void main (String [] args)
    {
        System.out.format("    %d%n", 1);
        System.out.format("  %d-%d%n", 1, 1);
        System.out.format("  %d-%d-%d%n", 1, 2, 1);
        System.out.format(" %d-%d-%d-%d%n", 1, 3, 3, 1);
        System.out.format("%d-%d-%d-%d-%d%n", 1, 4, 6, 4, 1);
       
    }
}