chris/Program.cs at master · Christy4ll/chris · GitHub

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using System;

namespace Class
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
        }
    }  // Chapter three
            //     Class work number 1
            // // Console.WriteLine("input a number")
                // int numOne = Convert.ToInt32(Console.ReadLine());
                // if(numOne%2 == 0)
                // {
                //     Console.WriteLine(this is an even number);
                // }
                // else
                // {
                //     Console.WriteLine(this is an odd number);
                // }

                    // Number 2
                // Console.WriteLine("input a number")
                // int numOne = Convert.ToInt32(Console.ReadLine());
                // bool divisible = (numOne %5 == 0 && numOne % 7 == 0);
                // Console.WriteLine(divisible);

                    // Number 3
                //  Console.WriteLine("Enter your digit");
                // int digit = Convert.ToInt32(Console.ReadLine());
                // int firstDigit = (digit / 100);
                // Console.WriteLine(firstDigit);
                // int second = (firstDigit) % 10;
                // Console.WriteLine(second);
                // if(second == 7)
                // {
                //     Console.WriteLine("true");
                // }
                // else
                // {
                //      Console.WriteLine("false");
                // }

                    // Number 5
                // Console.WriteLine("input the value of a");
                // double aValue = Convert.ToDouble(Console.ReadLine());
                // Console.WriteLine("input the value of b");
                // double bValue = Convert.ToDouble(Console.ReadLine());
                // Console.WriteLine("input the value of h");
                // double hValue = Convert.ToDouble(Console.ReadLine());
                // double areaOfTrapezoid = (0.5)*(aValue + bValue)* (hValue);
                // Console.WriteLine("The area of the trapezoid is " + areaOfTrapezoid);

                    // Number 6
                // Console.WriteLine("input the value of lenght");
                // double lenght = Convert.ToDouble(Console.ReadLine());
                // Console.WriteLine("input the value of breadth");
                // double breadth = Convert.ToDouble(Console.ReadLine());
                // double areaOfRectangle = (lenght * breadth);
                // double perimeterOfRectangle = 2 * (lenght + breadth);
                // Console.WriteLine("the area of the rectangle is " + areaOfRectangle);
                // Console.WriteLine("the perimeter of the rectangle is " + perimeterOfRectangle);

                    // Number 7
                // Console.WriteLine("Inputr your earth weight");
                // double weight = Convert.ToDouble(Console.ReadLine());
                // double weightOnMoon = 0.17 * weight;
                // Console.WriteLine("your approximate weight on the moon is " + weightOnMoon);

                //      Number 8
                //  Console.WriteLine("Enter the value of x");
                //  int xValue = Convert.ToInt32(Console.ReadLine());
                //  Console.WriteLine("Enter the value of y");
                //  int yValue = Convert.ToInt32(Console.ReadLine());
                //  bool isTrue =((x * x) + (y * y) <= 5 * 5);
                //  Console.WriteLine(isTrue);

                    // Number 9

                    // Number 10
              /*  Console.WriteLine("Input four digits number");
                int num = Convert.ToInt32(Console.ReadLine());
                int digitOne = (num % 10);
                int digitTwo = (num / 10) % 10;
                int digitThree = (num / 100) % 10;
                int digitFour = (num / 1000) % 10;
                int theSum = (digitOne + digitTwo + digitThree + digitFour);
                Console.WriteLine("their sum is " +theSum);
                Console.WriteLine(digitOne);
                Console.WriteLine(digitTwo);
                Console.WriteLine(digitThree);
                Console.WriteLine(digitFour);
                Console.WriteLine(digitOne+""+digitTwo+""+digitThree+""+digitFour);
                Console.WriteLine(digitFour+""+digitThree+""+digitTwo+""+digitOne);

                int a = 0;
                a = digitTwo;
                digitTwo = digitFour;
                digitFour = a;
                Console.WriteLine(digitOne+""+digitTwo+""+digitThree+""+digitFour);

                int z = 0;
                z = digitTwo;
                digitTwo = digitOne;
                digitOne = z;
                Console.WriteLine(digitOne+""+digitTwo+""+digitThree+""+digitFour);*/

                // Number 14
          // Console.WriteLine("input your number");
         // int numOne = Convert.ToInt32(Console.ReadLine());
           // bool isPrime = true;
    // for(int i = 2; i < numOne; i++)
    // {
    //     if(numOne % i == 0)
    //     {
    //         isPrime = false;
    //         break;
    //     }
    // }
    // if(isPrime == true)
    // {
    //     Console.WriteLine("This number is prime");
    // }
    // else
    // {
        // Console.WriteLine("This number is not prime");
    // }


}