Earlier we discussed how to write to a file using FileOutputStream. In this tutorial we will see how to write to a file using BufferedWriter. We will be using write() method of BufferedWriter to write the text into a file. The advantage of using BufferedWriter is that it writes text to a character-output stream, buffering characters so as to provide for the efficient writing (better performance) of single characters, arrays, and strings.
Complete example: Write to file using BufferedWriter
In this example we have a String mycontent and a file myfile.txt in C drive. We are writing the String to the File with the help of FileWriter and BufferedWriter.
package beginnersbook.com;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class WriteFileDemo {
public static void main(String[] args) {
BufferedWriter bw = null;
try {
String mycontent = "This String would be written" +
" to the specified File";
//Specify the file name and path here
File file = new File("C:/myfile.txt");
/* This logic will make sure that the file
* gets created if it is not present at the
* specified location*/
if (!file.exists()) {
file.createNewFile();
}
FileWriter fw = new FileWriter(file);
bw = new BufferedWriter(fw);
bw.write(mycontent);
System.out.println("File written Successfully");
} catch (IOException ioe) {
ioe.printStackTrace();
}
finally
{
try{
if(bw!=null)
bw.close();
}catch(Exception ex){
System.out.println("Error in closing the BufferedWriter"+ex);
}
}
}
}
Output:
File written Successfully