StringBuffer « performance « Java Testing Q&A

1. String vs StringBuffer in java- what are the performance advantages and disadvantages?    stackoverflow.com

Possible Duplicates:
Why to use StringBuffer in Java instead of the string concatenation operator
what is the difference between String and StringBuffer in java? ...

2. Does "+" use in String concatenation affect efficiency?    stackoverflow.com

I have worked with String, StringBuilder and StringBuffer in java.
I thought of this question, while I was thinking from efficiency point of view. Does "+" use in String concatenation affect efficiency? ...

3. StringBuffer and general performance questions    coderanch.com

4. String, StringBuffer and StringBuilder - Performance    coderanch.com

import java.util.*; import java.io.*; import java.lang.*; public class PasswordTest { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print ("What's your name?"); String name = in.nextLine(); //String firstName = in.next(); System.out.print("How old are you?"); int age = in.nextInt(); System.out.println("Hello, " + name + ", next year you will be " + (age + 1) + " years old."); ...

5. StringBuffer Question, which one will be good for performance    forums.oracle.com

Hi Friends, I have a sample string buffer class written below and which append method will be good in terms of performance as I need to do a looping.. First One: StringBuffer sbxmlHeadString = new StringBuffer(""); sbxmlHeadString.append("<">"xmlvalue""); // Here + is used inside the append Second One: StringBuffer sbxmlHeadString = new StringBuffer(""); sbxmlHeadString.append("<">"); sbxmlHeadString.append(tempcsvFieldValue); sbxmlHeadString.append(""); // Here i written append more ...