The java.lang.package provides fundamental classes used in nearly every Java application. In this section, we will look at the Character and String classes.
The Character class:
public final class Character extends Object implements Serializable, Comparable<Character>
This is one of the many core classes that has been around since the first version of Java. An object of the Character class consists of a single field of type char.
The String class:
public final class String extends Object implements Serializable, Comparable<String>, CharSequence
Strings, another core originating class, are immutable character strings.
Modifying the Character and String classes to support a newer version of Unicode, version 7.0 for Java ...
