JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to write byte content to a file in java?


Below example shows how write byte content to a local file. When you are dealing with bytes, you need to use Stream.


package com.java2novice.files;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class ByteWriteToFile {

	public static void main(String[] args) {
		
		OutputStream opStream = null;
		try {
 			String strContent = "This example shows how to write byte content to a file";
 			byte[] byteContent = strContent.getBytes();
 			File myFile = new File("C:/MyTestFile.txt");
 			// check if file exist, otherwise create the file before writing
			if (!myFile.exists()) {
				myFile.createNewFile();
			}
			opStream = new FileOutputStream(myFile);
			opStream.write(byteContent);
			opStream.flush();
 		} catch (IOException e) {
			e.printStackTrace();
		} finally{
			try{
				if(opStream != null) opStream.close();
			} catch(Exception ex){
				
			}
		}
	}
}
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Java File IO Operations Sample Code Examples

  1. All file operations.
  2. Show list of all file names from a folder.
  3. How to get list of all files from a folder?
  4. Filter the files by file extensions and show the file names.
  5. How to read file content using byte array?
  6. How to read file content line by line in java?
  7. How to read property file in static context?
  8. How to read input from console in java?
  9. How to get file list from a folder filtered by extensions?
  10. How to get file URI reference?
  11. How to store and read objects from a file?
  12. How to create and store property file dynamically?
  13. How to store property file as xml file?
  14. How to get file last modified time?
  15. How to convert byte array to inputstream?
  16. How to convert inputstream to reader or BufferedReader?
  17. How to convert byte array to reader or BufferedReader?
  18. How to set file permissions in java?
  19. How to read a file using BufferedInputStream?
  20. How to create temporary file in java?
  21. How to write or store data into temporary file in java?
  22. How to delete temporary file in java?
  23. How to write string content to a file in java?
  24. How to write byte content to a file in java?
Knowledge Centre
Can we call servlet destory() from service()?
As you know, destory() is part of servlet life cycle methods, it is used to kill the servlet instance. Servlet Engine is used to call destory(). In case, if you call destory method from service(), it just execute the code written in the destory(), but it wont kill the servlet instance. destroy() will be called before killing the servlet instance by servlet engine.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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