Create a new string writer using the specified initial string-buffer size.
@param initialSize The number of {@code char} values that will fit into this buffer before it is automatically expanded
@throws IllegalArgumentException If {@code initialSize} is negative
See Implementation
Create a new string writer using the specified initial string-buffer size.
@param initialSize The number of {@code char} values that will fit into this buffer before it is automatically expanded
@throws IllegalArgumentException If {@code initialSize} is negative