write properties file

package com.usr.io;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.util.Properties;

public class WritePropertiesFile {

       public static void main(String[] args) {

              try{

                     Properties pr=new Properties();

                     pr.setProperty("name","usr");

                     pr.setProperty("age","26");

                     pr.setProperty("city","bangalore");

                     File file=new File("test.properties");

                     FileOutputStream fos=new FileOutputStream(file);

                     BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(fos));

                     //Writes this property list (key and element pairs) in this Properties table to the output character stream in a format suitable for using the load(Reader) method.

                     pr.store(bw,"userInfo");         

                     bw.close();

              }

              catch(IOException ex){

                     ex.printStackTrace();

              }

       }

}

output 

test.properties

#userInfo
#Tue Feb 21 19:58:00 IST 2012
age=26
name=usr
city=bangalore