Strings are character sequences that offer a variety of methods. In this chapter, you will learn about this topic and practice through various exercises.
4.1 Introduction
For processing strings there are the classes String, StringBuffer, and StringBuilder. All three satisfy the interface java.lang.CharSequence.
4.1.1 The Interface CharSequence
The read-only interface CharSequence
mainly provides indexed access to single characters of type char as well as to character sequences, which in turn are of type CharSequence. The following methods, in ...
