How to merge two java.util.Properties objects?

Question

I\'m trying to have a default java.util.Properties object in my class, with the default properties it accepts, and let the developer override some of them by sp

Answer 1

You're almost good:

Properties defaultProperties = new Properties();
defaultProperties.setProperty("key1", "value1");
defaultProperties.setProperty("key2", "value2");

Properties finalProperties = new Properties(defaultProperties);
finalProperties.setProperty("key2", "value3");

EDIT: replaced put by setProperty.