Common strategy to read a config file???

Question

Hi..
I'm a new java programer, in reality i program SERVLETs, JSP ,etc,ec (WEB).
I need a program to do a realy specific work, this program work fine, but now i need read
a config file , my question is if exists strategy's about this problem in JAVA;
I need comments about this, "strategy" or "ideas" to work in this case!!!
thank's to all ..

Answer 1

thank's to all.
Simple solution:
public static String config(String propertie){
Properties props = new Properties();
try{
props.load(new FileInputStream(new File("config.cfg")));
} catch ( IOException e){
e.printStackTrace();
return props.getProperty(propertie);
}