C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
					
public class Program
{
	public static void Main()
	{
		string testString = "Hello, I am Hello, You are Declan";
		
		Console.WriteLine(Replace(testString, "Hello", "Mark", 2));
	}
	
	    public string Replace(string text, string search, string replace, int instanceNumber)
        {
          int pos = 0;
  
          for(int i=1; i<instanceNumber;i++)
          {
	        pos = text.IndexOf(search, pos);
          }

	      if (pos < 0)
		      throw new Exception("There were only " + instanceNumber + " instances of the phrase");	
  
          return text.Substring(0, pos) + replace + text.Substring(pos + search.Length);
        }
}

​x
 
using System;
                    
public class Program
{
    public static void Main()
    {
        string testString = "Hello, I am Hello, You are Declan";
        
        Console.WriteLine(Replace(testString, "Hello", "Mark", 2));
    }
    
        public string Replace(string text, string search, string replace, int instanceNumber)
        {
          int pos = 0;
  
          for(int i=1; i<instanceNumber;i++)
          {
            pos = text.IndexOf(search, pos);
          }
​
          if (pos < 0)
              throw new Exception("There were only " + instanceNumber + " instances of the phrase");    
  
          return text.Substring(0, pos) + replace + text.Substring(pos + search.Length);
        }
}

Compilation error (line 2, col 3): Preprocessor directive expected
Compilation error (line 3, col 3): Preprocessor directive expected
Compilation error (line 4, col 1): Preprocessor directive expected
Compilation error (line 5, col 3): Preprocessor directive expected
Compilation error (line 6, col 3): Preprocessor directive expected
Compilation error (line 8, col 17): ; expected
Compilation error (line 8, col 17): Syntax error, 'switch' expected
Compilation error (line 10, col 11): Syntax error, ':' expected
Compilation error (line 10, col 11): } expected
Compilation error (line 11, col 5): Too many characters in character literal
Compilation error (line 11, col 12): ; expected
Compilation error (line 11, col 12): } expected
Compilation error (line 12, col 11): Preprocessor directive expected
Compilation error (line 13, col 11): Preprocessor directive expected
Compilation error (line 14, col 11): Preprocessor directive expected
Compilation error (line 15, col 11): Preprocessor directive expected
Compilation error (line 16, col 12): ; expected
Compilation error (line 16, col 12): Unexpected character '$'
Compilation error (line 16, col 26): ; expected
Compilation error (line 18, col 20): Invalid expression term 'lock'
Compilation error (line 18, col 20): ; expected
Compilation error (line 18, col 24): Syntax error, '(' expected
Compilation error (line 18, col 24): Invalid expression term '/'
Compilation error (line 18, col 37): ) expected
Compilation error (line 20, col 5): Too many characters in character literal
Compilation error (line 20, col 11): ; expected
Compilation error (line 20, col 11): } expected
Compilation error (line 21, col 11): Preprocessor directive expected
Compilation error (line 22, col 11): Preprocessor directive expected
Compilation error (line 23, col 11): Preprocessor directive expected
Compilation error (line 24, col 12): ; expected
Compilation error (line 24, col 12): Unexpected character '$'
Compilation error (line 24, col 26): ; expected
Compilation error (line 24, col 110): ; expected
Compilation error (line 25, col 20): Invalid expression term 'lock'
Compilation error (line 25, col 20): ; expected
Compilation error (line 25, col 24): Syntax error, '(' expected
Compilation error (line 25, col 24): Invalid expression term '/'
Compilation error (line 25, col 37): ) expected
Compilation error (line 27, col 5): } expected

Last Run:	7:48:11 pm
Compile:	0s
Execute:	0.579s
Memory:	0b
CPU:	0s

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