Loading multiple properties files

Question

Is it possible to stack loaded properties in Java? For instance can I do:

Properties properties = new Properties();

properties.load(new FileInputStream(\"file1.         


        

Answer 1

Yes, you need to pass the default properties file in the constructor. Like this you can chain them up.

E.g.:

Properties properties1 = new Properties();
try (BufferedInputStream bis = new BufferedInputStream(new FileInputStream("file1.properties"))){
    properties1.load(bis);
}

Properties properties2 = new Properties(properties1);
try (BufferedInputStream bis = new BufferedInputStream(new FileInputStream("file2.properties"))){
    properties2.load(bis);
}