Proposed exercise
Create a C# program to imitate the basic Unix SysV "banner" utility, able to display big texts like these:
Output
Solution
using System;
public class Banner
{
static void Main(string[] args)
{
string[] esqueleto = {
" ### ### ### # # ##### ### # ## ### ",
" ### ### ### # # # # ## # # # # ### ",
" ### # # ######## # ### # ## # ",
" # # # ##### # ### # ",
" ####### # # # #### # # ",
" ### # # # # # # # ## # ",
" ### # # ##### # ### #### # ",
" ## ## #",
" # # # # # # ",
" # # # # # # ",
" # # ####### ##### ### ##### # ",
" # # # # # ### ### # ",
" # # # # # # ### # ",
" ## ## # ### # ",
" ### # ##### ##### # ####### ##### #######",
" # # ## # ## ## # # # ## # ",
"# # # # # ## # # # # ",
"# # # ##### ##### # # ###### ###### # ",
"# # # # ######## ## # # ",
" # # # # # # # # ## # # ",
" ### ##### ####### ##### # ##### ##### # ",
" ##### ##### # ### # # ##### ",
"# ## # ### ### # # # #",
"# ## # # # ##### # #",
" ##### ###### ### # # ## ",
"# # # # ### # ##### # # ",
"# ## # ### # # # ",
" ##### ##### # # # # # ",
" ##### # ###### ##### ###### ############## ##### ",
"# # # # # ## ## ## # # #",
"# ### # # # # ## # ## # # ",
"# # # ## ####### # # ###### ##### # ####",
"# #### ######## ## # ## # # #",
"# # ## ## ## ## # # #",
" ##### # ####### ##### ###### ######## ##### ",
"# # ### ## # # # ## ########",
"# # # ## # # ## #### ## #",
"# # # ## # # # # # ## # ## #",
"####### # #### # # # ## # ## #",
"# # # # ## # # # ## # ## #",
"# # # # ## # # # ## ### #",
"# # ### ##### # # ######## ## ########",
"###### ##### ###### ##### ######## ## ## #",
"# ## ## ## # # # ## ## # #",
"# ## ## ## # # ## ## # #",
"###### # ####### ##### # # ## ## # #",
"# # # ## # # # # # # # # # #",
"# # # # # # # # # # # # # # #",
"# #### ## # ##### # ##### # ## ## ",
"# ## ######## ##### # ##### # ",
" # # # # # # # # # # ",
" # # # # # # # # # # ",
" # # # # # # ",
" # # # # # # # ",
" # # # # # # # ",
"# # # ####### ##### # ##### #######",
" ### ",
" ### ## ##### #### ##### ###### ###### #### ",
" # # # # # # # # # # # # #",
" ###### # # # # # # # # ###",
" # # # ##### # # # ##### ##### # ",
" # # # # # # # # # # # #",
" # # ##### #### ##### ###### # #### ",
" ",
" # # # # # # # # # # # #### ",
" # # # # # # # ## ## ## # # #",
" ###### # # #### # # ## # # # # # #",
" # # # # # # # # # # # # # #",
" # # # # # # # # # # # ## # #",
" # # # #### # # ###### # # # # #### ",
" ",
" ##### #### ##### #### ##### # # # # # #",
" # # # # # # # # # # # # # #",
" # # # # # # #### # # # # # # #",
" ##### # # # ##### # # # # # # # ## #",
" # # # # # # # # # # # # ## ##",
" # ### # # # #### # #### ## # #",
" ### # ### ## # # # #",
" # # # # ###### # # # # # # # # # ",
" # # # # # # # # ## # # # #",
" ## # # ## ## # # # ",
" ## # # # # # # # # #",
" # # # # # # # # # # ",
" # # # ###### ### # ### # # # #"
};
Console.Write("Tell a string:");
string Entry = Console.ReadLine();
byte j=1;
char Letra;
int[] CodigoAscii = new int[Entry.Length];
//Convierto la cadena en enteros
for (int i = 0; i < Entry.Length; i++)
{
Letra = Convert.ToChar(Entry.Substring(i, j));
CodigoAscii[i] = Convert.ToInt32(Letra);
}
int AnchoLetras = 7,AltoLetra = 7;
int numeroAscii = 32;
int countLineas = 0, countLetras = 0,countPosiciones = 0;
bool LetraEncontrada = false;
string[] cadena = new string[AltoLetra];
// Recorro todas las letras
for (int i = 0; i < CodigoAscii.Length; i++)
{
// Recorro todos las filas del esqueleto de letras
for (int row = 0; row < esqueleto.Length; row++)
{
if (countLetras == 8)
{
row += AltoLetra-1;
countLetras = 0;
countPosiciones = 0;
}
//Si no la encuentro tengo que ir aumento la posicion y el numero ascii
while ((!LetraEncontrada) && (countLetras < 8))
{
if (CodigoAscii[i] == numeroAscii)
LetraEncontrada = true;
else
{
numeroAscii++;
countPosiciones += AnchoLetras;
countLetras++;
}
}
//Si la e encontrado y no tengo las 7 lineas de la letra
if ( (LetraEncontrada) && (countLineas < 7) )
{
if (i > 0)
cadena[countLineas] = cadena[countLineas] + esqueleto[row].Substring(countPosiciones, AnchoLetras);
else
cadena[countLineas] = esqueleto[row].Substring(countPosiciones, AnchoLetras);
countLineas++;
}
}
countLineas = 0;
numeroAscii = 32;
LetraEncontrada = false;
countPosiciones = 0;
countLetras = 0;
}
//Muestro
for (int i = 0; i < cadena.Length; i++)
Console.WriteLine(cadena[i]);
}
}