get last 4 character csharp

                
                        string mystring = "Hellopeople";
string lastFour =  mystring.Substring(mystring.Length - 4 , 4);

Console.WriteLine(lastFour);
                    
                

csharp get last character of string

                        
                                string str = "Hello World";
string substr = str.Substring(str.Length - 1);
                            
                        

csharp last char in string

                        
                                string msg = "Hello";
string last_char = msg[^1..];
Console.WriteLine(last_char); // output:  o
                            
                        

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