read properties file

messages.propeties

username=sachin

password=india@123

age=38

package com.usr.io;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.Enumeration;

import java.util.Properties;

public class ReadPropertiesFile {

       public static void main(String[] args) {

              try{

                     File fin=new File("messages.properties");

                     FileInputStream fis=new FileInputStream(fin);

                     BufferedReader br=new BufferedReader(new InputStreamReader(fis));

                     Properties pr=new Properties();

                     pr.load(br);

                     br.close();

                     Enumeration<Object> enumKeys=pr.keys();

                     while(enumKeys.hasMoreElements()){

                           String key=(String) enumKeys.nextElement();

                           String value=pr.getProperty(key);

                           System.out.println(key+":"+value);

                     }

              }

              catch(FileNotFoundException ex){

                     ex.printStackTrace();

              }

              catch(IOException ex){

                     ex.printStackTrace();

              }

       }

}

Output

age:38

password:india@123

username:sachin