Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Chapter 19, Problem 6SA

Explanation of Solution

Difference between the “StringBuffer” and “StringBuilder” class:

“StringBuffer” class“StringBuilder” class
This class is thread safe that is many thread can’t access concurrently.This class is not thread safe that is many thread can access concurrently.
Its methods are synchronized.Its methods are not synchronized.
Performance is low in this class because, the operation of this class is slower than “StringBuilder” class.Performance is high in this class because, the operation of this class is faster.
It is less efficient.It is more efficient.

Example for “StringBuffer”:

//Define "exampleTest1" class

class exampleTest1

{

    //Define main function

    public static void main(String[] args)

    {

        //Create an object "b" with parameter "Java"

        StringBuffer b = new StringBuffer("Java");

        /* Append "Programming" to string buffer "b" */

        b...

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