This is an example of how to write a String as chars to a File using a DataOutputStream. The DataOutputStream lets an application write primitive Java data types to an output stream in a portable way. An application can then use a data input stream to read the data back in. To write a String as chars to a File using a DataOutputStream you should:
- Create a FileOutputStream to write to the file with the specified name.
- Create a DataOutputStream with the FileOutputStream.
- Use
writeChars(String s)API method. This method writes a string to the underlying output stream as a sequence of characters.
Let’s take a look at the code snippet that follows:
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | package com.javacodegeeks.snippets.core;import java.io.DataOutputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;public class WriteStringAsBytesToFileWithDataOutputStream { public static void main(String[] args) { String filename = "output.txt"; String output = "Java Code Geeks - Java Examples"; FileOutputStream fos = null; DataOutputStream dos = null; try { fos = new FileOutputStream(filename); dos = new DataOutputStream(fos); dos.writeChars(output); } catch (FileNotFoundException fnfe) { System.out.println("File not found" + fnfe); } catch (IOException ioe) { System.out.println("Error while writing to file" + ioe); } finally { try { if (dos != null) { dos.close(); } if (fos != null) { fos.close(); } } catch (Exception e) { System.out.println("Error while closing streams" + e); } } }} |
This was an example of how to write a String as chars to a File using a DataOutputStream in Java.
