- 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
How to convert an object to byte array in java?
To convert an object to byte array
- Make the required object serializable by implementing the Serializable interface.
- Create a ByteArrayOutputStream object.
- Create an ObjectOutputStream object by passing the ByteArrayOutputStream object created in the previous step.
- Write the contents of the object to the output stream using the writeObject() method of the ObjectOutputStream class.
- Flush the contents to the stream using the flush() method.
- Finally, convert the contents of the ByteArrayOutputStream to a byte array using the toByteArray() method.
Example
import java.io.ByteArrayOutputStream; import java.io.ObjectOutputStream; import java.io.Serializable; class Sample implements Serializable { public void display() { System.out.println("This is a sample class"); } } public class ObjectToByteArray { public static void main(String args[]) throws Exception { Sample obj = new Sample(); ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(bos); oos.writeObject(obj); oos.flush(); byte [] data = bos.toByteArray(); } }
Advertisements
To Continue Learning Please Login
Login with Google