How to save a properties object to a file / how to create a properties file

Question

hi,
i am writing an application in which all the database and user information is stored in a properties object and is later retreived from it when a database connection or login etc is required.
i wanna know how can i save this object / write it to a file i.e. how do i create a properties file.
so that every time the application is run to create a new dbase etc the entire info regarding that will be stored in a new property file.

Answer 1

Load:
Properties p = new Properties();
FileInputStream in = new FileInputStream("db.properties");
p.load(p);
String username = p.getProperty("username");
String password = p.getProperty("password");
// ...Save:
String username = "user";
String password = "pw";
Properties p = new Properties();
p.setProperty("username", username);
p.setProperty("password", password);
FileOutputStream out = new FileOutputStream("db.properties");
p.store(out, null); // null or a String header as second argumentThe file will look something like
username=user
password=pw