What is String A Java String contains an immutable sequence of Unicode characters. Unlike C/C++, where string is simply an array of char, A Java String is an object of the class java.lang. Java String is, however, special. Unlike an ordinary class: String is associated with string literal in the form of double-quoted texts such as "Hello, world!". You can assign a string literal directly into a String variable, instead of calling the constructor to create a String instance. The '+' operator is overloaded to concatenate two String operands. '+' does not work on any other objects such as Point and Circle. String is immutable. That is, its content cannot be modified once it is created. For example, the method toUpperCase() constructs and returns a new String instead of modifying the its existing content. What is special in Java to handle characters: The String class represents character strings. All string literals in Java programs, such as "abc...
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