public bool StartsWith(MyString str)
{
if (this.Length < str.Length)
{
return(false);
}
else
{
for (int i = 0; i < str.Length; i++)
{
if (this[i] != str[i])
{
return(false);
}
}
return(true);
}
}
public MyString Remove(int startID, int count)
{
MyString result = new MyString(this.Length - count);
for (int i = 0; i < startID; i++)
{
result[i] = this.chars[i];
}
int j = startID;
for (int i = startID + count; i < this.Length; i++)
{
result[j] = this.chars[i];
j++;
}
return(result);
}
public bool EndsWith(MyString str)
{
if (this.Length < str.Length)
{
return(false);
}
else
{
int indexThis = this.Length - str.Length;
for (int i = 0; i < str.Length; i++, indexThis++)
{
if (this[indexThis] != str[i])
{
return(false);
}
}
return(true);
}
}
public bool Contains(MyString b)
{
for (int i = 0; i < this.Length - b.Length + 1; i++)
{
bool result = true;
for (int j = i; j < b.Length; j++)
{
if (this.chars[j] != b[j - i])
{
result = false;
break;
}
}
if (result)
{
return(result);
}
}
return(false);
}
public MyString Insert(int startID, MyString value)
{
MyString result = new MyString(this.Length + value.Length);
for (int i = 0; i < startID; i++)
{
result[i] = this.chars[i];
}
for (int i = 0; i < value.Length; i++)
{
result[startID + i] = value[i];
}
int j = startID;
for (int i = startID + value.Length; i < result.Length; i++)
{
result[i] = this.chars[j];
j++;
}
return(result);
}
static void Main(string[] args)
{
string str1;
Console.Write($"Welcom to MyString Test Application{Environment.NewLine}Enter string line: ");
str1 = Console.ReadLine();
MyString mystr1 = new MyString(str1);
Console.WriteLine($"MyString from string line is: {mystr1}{Environment.NewLine}It's length is {mystr1.Length}{Environment.NewLine}");
Console.Write("Enter another two MyString lines to compare them. First one: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Second one: ");
MyString mystr2 = new MyString(Console.ReadLine());
switch (MyString.Compare(mystr1, mystr2))
{
case 1:
Console.WriteLine("First one is bigger");
break;
case -1:
Console.WriteLine("Second one is bigger");
break;
case 0:
Console.WriteLine("They are the same");
break;
}
Console.WriteLine();
Console.Write("Enter another two MyString lines to concatenate them. First one: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Second one: ");
mystr2 = new MyString(Console.ReadLine());
Console.WriteLine($"The concatenation is: {MyString.Concat(mystr1, mystr2)}");
Console.WriteLine();
Console.Write("Enter another two MyString lines to find out, if they are equal. First one: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Second one: ");
mystr2 = new MyString(Console.ReadLine());
if (mystr1.Equals(mystr2))
{
Console.WriteLine("They are equal");
}
else
{
Console.WriteLine("They are not equal");
}
Console.WriteLine();
Console.Write("Enter another two MyString lines to find if the first contains second. First one: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Second one: ");
mystr2 = new MyString(Console.ReadLine());
if (mystr1.Contains(mystr2))
{
Console.WriteLine("It does");
}
else
{
Console.WriteLine("It doesn't");
}
Console.WriteLine();
Console.Write("Enter another two MyString lines to find if the first starts with second. First one: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Second one: ");
mystr2 = new MyString(Console.ReadLine());
if (mystr1.StartsWith(mystr2))
{
Console.WriteLine("It does");
}
else
{
Console.WriteLine("It doesn't");
}
Console.WriteLine();
Console.Write("Enter another two MyString lines to find if the first ends with second. First one: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Second one: ");
mystr2 = new MyString(Console.ReadLine());
if (mystr1.EndsWith(mystr2))
{
Console.WriteLine("It does");
}
else
{
Console.WriteLine("It doesn't");
}
Console.WriteLine();
Console.Write("Enter MyString to find the index of a sybmbol. MyString: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Sybmbol: ");
char symbol = char.Parse(Console.ReadLine());
if (mystr1.IndexOf(symbol) == -1)
{
Console.WriteLine("There is no such symbol");
}
else
{
Console.WriteLine(mystr1.IndexOf(symbol));
}
Console.WriteLine();
Console.Write("Enter MyString to find the last index of a sybmbol. MyString: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Sybmbol: ");
symbol = char.Parse(Console.ReadLine());
if (mystr1.LastIndexOf(symbol) == -1)
{
Console.WriteLine("There is no such symbol");
}
else
{
Console.WriteLine(mystr1.LastIndexOf(symbol));
}
Console.WriteLine();
Console.Write("Enter MyString to find the first index of any symbol in char array. MyString: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Sybmbols: ");
char[] symbols = Console.ReadLine().ToCharArray();
if (mystr1.IndexOfAny(symbols) == -1)
{
Console.WriteLine("There is no such symbols");
}
else
{
Console.WriteLine(mystr1.IndexOfAny(symbols));
}
Console.WriteLine();
Console.Write("Enter MyString to find the last index of any symbol in char array. MyString: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Sybmbols: ");
symbols = Console.ReadLine().ToCharArray();
if (mystr1.LastIndexOfAny(symbols) == -1)
{
Console.WriteLine("There is no such symbols");
}
else
{
Console.WriteLine(mystr1.LastIndexOfAny(symbols));
}
Console.WriteLine();
Console.Write("Enter MyString to make it to upper: ");
mystr1 = new MyString(Console.ReadLine());
mystr1.ToUpper();
Console.WriteLine($"The result is: {mystr1}");
Console.WriteLine();
Console.Write("Enter MyString to make it to lower: ");
mystr1 = new MyString(Console.ReadLine());
mystr1.ToLower();
Console.WriteLine($"The result is: {mystr1}");
Console.WriteLine();
int position;
Console.Write("Enter another two MyString lines and position to insert second in the first. First one: ");
mystr1 = new MyString(Console.ReadLine());
Console.Write("Second one: ");
mystr2 = new MyString(Console.ReadLine());
do
{
Console.Write("The index of position should be between {0} and {1}. Position: ", 0, mystr1.Length - 1);
position = int.Parse(Console.ReadLine());
}while (position < 0 || position > mystr1.Length - 1);
Console.WriteLine($"The result is: {mystr1.Insert(position, mystr2)}");
Console.WriteLine();
int start, end;
Console.Write("Enter another MyString line and start and end positions to remove elements. MyString: ");
mystr1 = new MyString(Console.ReadLine());
do
{
Console.WriteLine("Start should be less than end!");
do
{
Console.Write("The index of start should be between {0} and {1}. Start: ", 0, mystr1.Length - 1);
start = int.Parse(Console.ReadLine());
}while (start < 0 || start > mystr1.Length - 1);
do
{
Console.Write("The index of end should be between {0} and {1}. End: ", 0, mystr1.Length - 1);
end = int.Parse(Console.ReadLine());
}while (end < 0 || end > mystr1.Length);
}while (start >= end);
Console.WriteLine($"The result is: {mystr1.Remove(start, end)}");
Console.WriteLine();
Console.Write("Enter another MyString line and start and end positions to generate SubMyString. MyString: ");
mystr1 = new MyString(Console.ReadLine());
do
{
Console.WriteLine("Start should be less than end!");
do
{
Console.Write("The index of start should be between {0} and {1}. Start: ", 0, mystr1.Length - 1);
start = int.Parse(Console.ReadLine());
}while (start < 0 || start > mystr1.Length - 1);
do
{
Console.Write("The index of end should be between {0} and {1}. End: ", 0, mystr1.Length - 1);
end = int.Parse(Console.ReadLine());
}while (end < 0 || end > mystr1.Length);
}while (start >= end);
Console.WriteLine($"The result is: {mystr1.SubMyString(start, end)}");
Console.WriteLine();
}
public static MyString operator +(MyString first, MyString second)
{
return(MyString.Concat(first, second));
}
public int CompareTo(MyString myStr)
{
return(MyString.Compare(this, myStr));
}
