using System;
public class exercise86
{
struct city
{
public string name;
public uint inhabitants;
}
public static void Main()
{
int maxCities= 500;
city[] cities = new city[maxCities];
int amount = 0;
int currentCityNumber;
string option;
string textToSearch;
bool found;
string textToModify;
bool finished = false;
do
{
Console.WriteLine();
Console.WriteLine("Cities database");
Console.WriteLine();
Console.WriteLine("1.- Add a new city");
Console.WriteLine("2.- View all cities");
Console.WriteLine("3.- Modify a record");
Console.WriteLine("4.- Insert a new record");
Console.WriteLine("5.- Delete a record");
Console.WriteLine("6.- Search in the records");
Console.WriteLine("7.- Correct the capitalization of the names");
Console.WriteLine("0.- Exit");
Console.WriteLine();
Console.Write("Choose an option: ");
option = Console.ReadLine();
switch (option)
{
case "0":
finished = true;
break;
case "1":
if (amount > maxCities- 1)
Console.WriteLine("the database is full");
else
{
Console.WriteLine("Entering data for city number {0}", amount + 1);
Console.Write("Enter the city name: ");
cities[amount].name = Console.ReadLine();
Console.Write("Enter the inhabitants numbers: ");
cities[amount].inhabitants = Convert.ToUInt32(Console.ReadLine());
Console.WriteLine("The data was entered correctly");
amount++;
}
break;
case "2":
for (int i = 0; i < amount; i++)
{
Console.WriteLine("{0}: {1}, {2} inhabitants",
i + 1, cities[i].name, cities[i].inhabitants);
}
Console.WriteLine();
break;
case "3":
Console.Write("Enter the city number: ");
currentCityNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter a new data for a city number: {0}", currentCityNumber);
Console.Write("City name (was {0}; hit ENTER to leave as is): ", cities[currentCityNumber - 1].name);
textToModify = Console.ReadLine();
if (textToModify != "")
cities[currentCityNumber - 1].name = textToModify;
Console.Write("Inhabitants (was {0}; hit ENTER to leave as is): ",
cities[currentCityNumber - 1].inhabitants);
textToModify = Console.ReadLine();
if (textToModify != "")
cities[currentCityNumber - 1].inhabitants = Convert.ToUInt32(textToModify);
Console.WriteLine();
break;
case "4":
if (amount > maxCities- 1)
Console.WriteLine("The database is full");
else
{
Console.Write("Enter the number of the city to modify: ");
currentCityNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Insert a new data at {0} position: ",currentCityNumber);
amount++;
for (int i = (int)amount; i > currentCityNumber - 1; i--)
{
cities[i] = cities[i - 1];
}
Console.Write("City name: ");
cities[currentCityNumber - 1].name = Console.ReadLine();
Console.Write("Inhabitants: ");
cities[currentCityNumber - 1].inhabitants = Convert.ToUInt32(Console.ReadLine());
}
break;
case "5":
Console.Write("Enter the city number for delete: ");
currentCityNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Deleting the number {0}", currentCityNumber);
for (int i = currentCityNumber - 1; i < amount; i++)
{
cities[i] = cities[i + 1];
}
amount--;
break;
case "6":
Console.Write("Enter the text to search: ");
textToSearch = Console.ReadLine();
found = false;
for (int i = 0; i < amount; i++)
{
if (cities[i].name.ToUpper().IndexOf(textToSearch.ToUpper()) >= 0)
{
Console.WriteLine("{0} found in {1}",
textToSearch, cities[i].name);
found = true;
}
}
if (!found)
Console.WriteLine("Not found.");
break;
case "7":
for(int i = 0;i < amount;i++)
{
string lowerCaseName = cities[i].name.ToLower();
string correctedName = lowerCaseName.Substring(0, 1).ToUpper()
+ lowerCaseName.Substring(1);
for (int j = 1; j < correctedName.Length - 2; j++)
{
if (correctedName[j] == ' ')
correctedName = correctedName.Substring(0, j) + " " +
correctedName.Substring(j + 1, 1).ToUpper() +
correctedName.Substring(j + 2);
}
cities[i].name = correctedName;
}
break;
default:
Console.WriteLine("Wrong option ");
break;
}
}
while (!finished);
}
}