/*a.If a string is going to remain constant throughout the program, then use String class object because a String object is immutable. *b.If a string can change (example: lots of logic and operations ...

Introduced: StringBuilder was introduced in Java 5 (JDK 1.5) to provide a more efficient alternative to StringBuffer when thread safety is not required. Performance: StringBuilder is generally faster ...

StringBuffer Class A String object is immutable. A StringBuffer object is like a String object but can be modified. A string buffer is a sequence of characters but the length and content of the ...

Java string object example. In Java, a string is an object that represents a number of character values. Each letter in the string is a separate character value that makes up the Java string object.