CSHARP

string stringbuilder c#

StringBuilder sbr = new StringBuilder("My Favourite Programming Font is ");
    sbr.Append("Inconsolata")
//append operation only modifies existing instance of sbr rather than creating new instance

for loop Stringbuilder c#

StringBuilder sb = new StringBuilder();
     sb.Append("Ola~");
     sb.Append("Jola~");  
     sb.Append("Zosia~");

 //foreach loop ver sb object

  foreach(string s in sb.ToString().Split('~')){
         Console.WriteLine(s);
          }

string stringbuilder c#

string s="hi";
    //now let s be address 1000
    s+=" there"; 
    //above concatination causes creation of new instance in address location other than 1000
    //with modified value "hi there"