Count duplicate characters from
String?
A
string Can Contained two or more character in it, but we want to have only one
For
Example
Required input and output
Input:
Csharpstar
Output: Csharpt
Output: Csharpt
Input:
Ganga
Output: Gang
Output: Gang
Input:
Yahoo
Output: Yaho
Output: Yaho
Input:
ganga
Output: gan
Output: gan
Solution:
You can achieve this by two ways
1. One by for loop
2. Using index of method IndexOf(ch)
Step 1:
public string DuplicateChar(String Str)
{
int Count = 0;
//Str = Str.ToUpper();
for (int i = 0; i <= Str.Length - 1; i++)
{
for(int j=i+1;j<=Str.Length-1;j++)
{
if (Str[i] == Str[j])
{
Count++;
}
}
}
return Count.ToString();
}
static void Main(string[] args)
{
String Name = "Ganga";
Program obj = new Program();
Console.WriteLine("Total Duplicate
value"+ obj.DuplicateChar(Name));
Console.ReadLine();
}
Step 2:
public string DuplicateCharCount(String Str)
{
string repeat = "";
int No = 0;
// Str = Str.ToUpper();
foreach (Char ch in Str)
{
if (repeat.IndexOf(ch) == -1)
{
No++;
}
repeat += ch;
}
return(Str.Length- No).ToString();
}
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