- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Difference between String buffer and String builder in Java
String buffer and StringBuilder both are mutable classes which can be used to do operation on string objects such as reverse of string, concating string and etc. We can modify string without creating a new object of the string.
A string buffer is thread-safe whereas string builder is not thread-safe. Therefore, it is faster than a string buffer. Also, a string concat + operator internally uses StringBuffer or StringBuilder class. Below are the differences.
| Sr. No. | Key | String Buffer | String Builder |
|---|---|---|---|
| 1 | Basic | StringBuffer was introduced with the initial release of Java | It was introduced in Java 5 |
| 2 | Synchronized | It is synchronized | It is not synchronized |
| 3 | Performance | It is thread-safe. So, multiple threads canât access at the same time, therefore, it is slow. | It is not thread-safe hence faster than String Buffer. |
| 4 | Mutable | It is mutable. We can modify string without creating an object. | It is also mutable |
| 5 | Storage | Heap | Heap |
Example of StringBuilder
public class StringBuilderExample{
public static void main(String[] args){
StringBuilder builder=new StringBuilder("Hi");
builder.append("Java 8");
System.out.println("StringBuilderExample" +builder);
}
}
Output
StringBuilderExampleHiJava 8
Example of StringBuffer
public class StringBufferExample{
public static void main(String[] args){
StringBuffer buffer=new StringBuffer("Hi");
buffer.append("Java 8");
System.out.println("StringBufferExample" +buffer);
}
}
Output
StringBufferExampleHiJava 8
Updated on: 05-Dec-2023
14K+ Views
Advertisements