Single If-else Statement to Print All Letters Using C#

Introduction

 

This article explains how to print all the letters A-Z using a single A-Z. The simplest concept for printing these is to create a 6 X 6 matrix on the paper and draw stars (*) where you want.

For example to print A: 

1. Create one 6X6 matrix on paper and draw stars (*) to make an A.
   
   
   
   
2. Now write the row numbers and column numbers on this:
   
   
   
3. Now make your condition and decide where we want the stars (*) and where we want spaces.
   
   
   
   
   
   
4. By using the above 2 conditions create a single condition as below:
   
   
   
   
5. So to design "A" we need to write the code as follows:
   

   static void A()
           {
               for (Row = 0; Row < 7; Row++)
               {
                   for (Col = 0; Col < 7; Col++)
                   {
                       if (((Col == 1 || Col == 5) && Row != 0) || ((Row == 0 || Row == 3) && (Col > 1 && Col < 5)))
                           Console.Write("*");
                       else
                           Console.Write(" ");
                   }
                   Console.WriteLine();
               }
           }

In the same manner as for the letter A, the letters B - Z can be designed like this:

Code for all letters (A - Z):

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AtoZ
{
    class Program
    {
        static int Row, Col;
        static void Main(string[] args)
        {
            char choice;
            Console.WriteLine("Please Enter Any one Alphabate Which you want to print");
            choice = char.Parse(Console.ReadLine());
            switch (choice)
            {
                case 'a':
                case 'A':
                    A();
                    break;

                case 'b':
                case 'B':
                    B();
                    break;

                case 'c':
                case 'C':
                    C();
                    break;

                case 'd':
                case 'D':
                    D();
                    break;

                case 'e':
                case 'E':
                    E();
                    break;

                case 'f':
                case 'F':
                    F();
                    break;

                case 'g':
                case 'G':
                    G();
                    break;

                case 'h':
                case 'H':
                    H();
                    break;

                case 'i':
                case 'I':
                    I();
                    break;

                case 'j':
                case 'J':
                    J();
                    break;

                case 'k':
                case 'K':
                    K();
                    break;

                case 'l':
                case 'L':
                    L();
                    break;

                case 'm':
                case 'M':
                    M();
                    break;

                case 'n':
                case 'N':
                    N();
                    break;

                case 'o':
                case 'O':
                    O();
                    break;

                case 'p':
                case 'P':
                    P();
                    break;

                case 'q':
                case 'Q':
                    Q();
                    break;

                case 'r':
                case 'R':
                    R();
                    break;

                case 's':
                case 'S':
                    S();
                    break;

                case 't':
                case 'T':
                    T();
                    break;

                case 'u':
                case 'U':
                    U();
                    break;

                case 'v':
                case 'V':
                    V();
                    break;

                case 'w':
                case 'W':
                    W();
                    break;

                case 'x':
                case 'X':
                    X();
                    break;

                case 'y':
                case 'Y':
                    Y();
                    break;

                case 'z':
                case 'Z':
                    Z();
                    break;
            }
        }
        static void A()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Col == 1 || Col == 5) && Row != 0) || ((Row == 0 || Row == 3) && (Col > 1 && Col < 5)))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void B()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || ((Row == 0 || Row == 3 || Row == 6) && (Col < 5 && Col > 1)) || (Col == 5 && (Row != 0 && Row != 3 && Row != 6)))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void C()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if ((Col == 1 && (Row != 0 && Row != 6)) || ((Row == 0 || Row == 6) && (Col > 1 && Col < 5)) || (Col == 5 && (Row == 1 || Row == 5)))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void D()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || ((Row == 0 || Row == 6) && (Col > 1 && Col < 5)) || (Col == 5 && Row != 0 && Row != 6))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void E()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || ((Row == 0 || Row == 6) && (Col > 1 && Col < 6)) || (Row == 3 && Col > 1 && Col < 5))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void F()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || (Row == 0 && Col > 1 && Col < 6) || (Row == 3 && Col > 1 && Col < 5))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void G()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if ((Col == 1 && Row != 0 && Row != 6) || ((Row == 0 || Row == 6) && Col > 1 && Col < 5) || (Row == 3 && Col > 2 && Col < 6) || (Col == 5 && Row != 0 && Row != 2 && Row != 6))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void H()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if ((Col == 1 || Col == 5) || (Row == 3 && Col > 1 && Col < 6))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void I()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 3 || (Row == 0 && Col > 0 && Col < 6) || (Row == 6 && Col > 0 && Col < 6))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void J()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if ((Col == 4 && Row != 6) || (Row == 0 && Col > 2 && Col < 6) || (Row == 6 && Col == 3) || (Row == 5 && Col == 2))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void K()
        {
            int i, j;
            j = 5;
            i = 0;
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {

                    if (Col == 1 || ((Row == Col + 1) && Col != 0))
                    {
                        Console.Write("*");
                    }
                    else if (Row == i && Col == j)
                    {
                        Console.Write("*");
                        i++;
                        j--;
                    }
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void L()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || (Row == 6 && Col != 0 && Col < 6))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void M()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || Col == 5 || (Row == 2 && (Col == 2 || Col == 4)) || (Row == 3 && Col == 3))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void N()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || Col == 5 || (Row == Col && Col != 0 && Col != 6))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void O()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Col == 1 || Col == 5) && Row != 0 && Row != 6) || ((Row == 0 || Row == 6) && Col > 1 && Col < 5))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void P()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || ((Row == 0 || Row == 3) && Col > 0 && Col < 5) || ((Col == 5 || Col == 1) && (Row == 1 || Row == 2)))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void Q()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if ((Col == 1 && Row != 0 && Row != 6) || (Row == 0 && Col > 1 && Col < 5) || (Col == 5 && Row != 0 && Row != 5) || (Row == 6 && Col > 1 && Col < 4) || (Col == Row - 1 && Row > 3))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void R()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 1 || ((Row == 0 || Row == 3) && Col > 1 && Col < 5) || (Col == 5 && Row != 0 && Row < 3) || (Col == Row - 1 && Row > 2))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void S()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Row == 0 || Row == 3 || Row == 6) && Col > 1 && Col < 5) || (Col == 1 && (Row == 1 || Row == 2 || Row == 6)) || (Col == 5 && (Row == 0 || Row == 4 || Row == 5)))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void T()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (Col == 3 || (Row == 0 && Col > 0 && Col < 6))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void U()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Col == 1 || Col == 5) && Row != 6) || (Row == 6 && Col > 1 && Col < 5))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void V()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Col == 1 || Col == 5) && Row < 5) || (Row == 6 && Col == 3) || (Row == 5 && (Col == 2 || Col == 4)))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void W()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Col == 1 || Col == 5) && Row < 6) || ((Row == 5 || Row == 4) && Col == 3) || (Row == 6 && (Col == 2 || Col == 4)))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void X()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Col == 1 || Col == 5) && (Row > 4 || Row < 2)) || Row == Col && Col > 0 && Col < 6 || (Col == 2 && Row == 4) || (Col == 4 && Row == 2))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void Y()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Col == 1 || Col == 5) && Row < 2) || Row == Col && Col > 0 && Col < 4 || (Col == 4 && Row == 2) || ((Col == 3) && Row > 3))
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
        static void Z()
        {
            for (Row = 0; Row < 7; Row++)
            {
                for (Col = 0; Col < 7; Col++)
                {
                    if (((Row == 0 || Row == 6) && Col >= 0 && Col <= 6)||Row+Col==6)
                        Console.Write("*");
                    else
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
        }
    }
}