Make Java Properties available across classes?

Question

I chose to take properties file for customization of some settings. I use the following code to make a Properties Object available in a class

Properties defa         


        

Answer 1

If you only need one instance of your properties class you can use the singleton (anti?)-pattern.

It would look like a class like this:

public class MyProperties extends Properties {
    private static MyProperties instance = null;

    private MyProperties() {
    }

    public static MyProperties getInstance() {
        if (instance == null) {
            try {
                instance = new MyProperties();
                FileInputStream in = new FileInputStream("custom.properties");
                instance.load(in);
                in.close();
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
        return instance;
    }
}