String Class (Top)

The java.lang.String class is used to represent a sequence of characters. After a string instance is created, it can not be modified.

StringBuffer Class (Top)

The java.lang.StringBuffer class implements a buffer for a sequence of characters than can be updated. The size of the buffer can grow or shrink as needed to accomodate the updates.

StringTokenizer Class (Top)

The java.util.StringTokenizer class implements operations that can be used to parse a string into tokens.