Functions of the StringBuffer class

StringBuffer class

1. Add function

Public StringBuffer append (String str): Can add any type of data to the buffer and return to the buffer area

Public stringbuffer Insert (int offest,string str): Any type of data can be added to the buffer at the specified location and returned to the buffer area

2. Delete function

Public stringbuffer deletecharat (int index): Deletes the character at the specified position and returns itself

Public StringBuffer Delete (int start,int end): Deletes the character from the specified position to the end of the specified position, and returns itself Note: Contains start, does not contain end

3. Replacement function

Public StringBuffer replare (int start,int end,string str): From start to end, replace with STR

4. Reverse function

Public StringBuffer Reverse ()

Functions of the StringBuffer class