Wednesday, 11 May 2011

Write byte array to file using BufferedOutputStream

Writing the function:

public static void writeByteArrayToFile(String fileName, byte[] byteArr)
{
BufferedOutputStream bos = null;
try
{
//create an object of FileOutputStream
FileOutputStream fos = new FileOutputStream(new File(strFileName));
//create an object of BufferedOutputStream
bos = new BufferedOutputStream(fos);


/*
* To write byte array to file use,
* public void write(byte[] b) method of BufferedOutputStream
* class.
*/
System.out.println("Writing byte array to file");
bos.write(byteArr);
System.out.println("File written");
}
catch(FileNotFoundException fnfe)
{
System.out.println("Specified file not found" + fnfe);
}
catch(IOException ioe)
{
System.out.println("Error while writing file" + ioe);
}
finally
{
if(bos != null){
try
{
//flush the BufferedOutputStream
bos.flush();
//close the BufferedOutputStream
bos.close();
}
catch(Exception e){//don't swallow
//exceptions..add your code accordingly
}
}
}
}


Using the above function:


String fileName = "C:\demo.txt";
String str = "BufferedOutputStream Example to write byte array";
writeByteArrayToFile(fileName,str.getBytes());

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