C#: Introduction to Programming

Това са задачите от първото домашно по C#. Задачите са доста елементарни и не се нуждаят от  обяснения.

2. Create, compile and run a “Hello C#” console application.

using System;

class HelloCSharp
{
    static void Main()
    {
        Console.WriteLine("Hello C#");
    }
}

3. Modify the application to print your name.

using System;

class PrintMyName
{
    static void Main()

    {
        Console.WriteLine("Kaloyan");
    }
}

4. Write a program to print the numbers 1, 101 and 1001.

using System;

class PrintNumbers
{
    static void Main()
    {
        Console.WriteLine(1);
        Console.WriteLine(101);
        Console.WriteLine(1001);
    }
}

6. Create console application that prints your first and last name.

using System;

class PrintMyNameAndSurname
{
    static void Main()
    {
        Console.WriteLine("Kaloyan Savov");
    }
}

7. Create a console application that prints the current date and time.

using System;


class PrintCurrentDateAndTime
{
    static void Main()
    {
        DateTime now = DateTime.Now;
        Console.WriteLine(now)
    }
}

8. Create a console application that calculates and prints the square of the number 12345.

using System;

class CalculateSquare
{
    static void Main()
    {
        Console.WriteLine(12345*12345);
    }
}

9. Write a program that prints the first 10 members of the sequence: 2, -3, 4, -5, 6, -7, ...

using System;

class PrintFirstTenNumbers
{
    static void Main()
    {
        int plus = 2;
        int minus = -3;
        Console.Write(plus + ", " + minus);
        for (int i = 0; i < 4; i++)
        {
            plus += 2;
            minus -= 2;
            Console.Write(", " + plus + ", " + minus);
        }
        Console.WriteLine();
    }
}

12.* Write a program to read your age from the console and print how old you will be after 10 years.

using System;

class PrintMyAgeAfterTenYears
{
    static void Main()
    {
        Console.WriteLine("Please enter your age (1 to 130 Years)");
        int age = int.Parse(Console.ReadLine());
        int result = age + 10;
        if (age > 130)
        {
            Console.WriteLine("You are too old. Try again. ;)");
        }
        if (age < 1)
        {
            Console.WriteLine("Wrong age. Try again.");
        }
        else
        {
            Console.WriteLine("Your age after 10 years will be: " + result + " years");
        }
    }
}