BE THE CODER > Java > Load properties, Save properties and Iterate properties

Often instead of populating properties programatically, we use a text based external configuration or properties file. This example shows loading properties from a text file,

File Name :	com/bethecoder/tutorials/utils/props/LoadProps.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.utils.props;



import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;

import java.util.Properties;



public class LoadProps {

  /**

   * @param args

   */

  public static void main(String[] args) {



    Properties prop = new Properties();

    String propFile = "C:/prop_file.txt";



    try {

      System.out.println("Before properties load : " + prop);

      prop.load(new FileReader(propFile));

      System.out.println("After properties load : " + prop);

      

      //Access properties

      System.out.println(prop.getProperty("ONE"));

      System.out.println(prop.getProperty("TWO"));

      

    } catch (FileNotFoundException e) {

      e.printStackTrace();

    } catch (IOException e) {

      e.printStackTrace();

    }

  }

}

File Name :

source/com/bethecoder/tutorials/utils/props/prop_file.txt

#My test comments
#Sat Apr 02 13:46:37 IST 2011
TWO=222222
FOUR=444444
ONE=111111
THREE=333333

Load Properties