Java property file usage

Use the below code to read the java property file and retrieve the property value.
 
      Properties properties = new Properties();
        FileInputStream in;
        try {
            in = new FileInputStream("app.properties");
            properties.load(in);
            in.close();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
        return properties.getProperty("appcode");

Sample "app.properties" file is shown below.

appcode=50
email=admin@yahoo.com