Hello, Is the maximum amount of parameters for Union, intersection and complement 2? And is it safe to assume that there can't only be 1 parameter for intersection and union? Thanks

ANONYMOUS wrote Dependency can have various meanings, and I am not sure how you are using it here. The same goes for the concept of flexibility. As a sweeping generalization, I would say that interfaces are "more flexible" than inheritance. Interfaces...

When we use inheritance (extends), we create a dependency on the parent class, correct? Does using an interface instead of an abstract base class make our code more flexible?

You can get either to work, but given that the isPrime method has no reason to depend on any object state, static makes the most sense.

emails is an array (or specifically an ArrayList) of objects of the class Email. The loop is a 'for-each' loop which uses the syntax for (datatype variableName collection) ... This means for each item in the collection array, store th...

Could you please tell me what does this for loop mean? for (Email email emails) Thank you.

In the writing of the isPrime method, the question doesn't say whether the method should be static or non-static. Should we be concerned about this, or just assume the default is non-static?

There are a couple of options for how to get input in a Java program that we have covered so far... You can indeed use Scanner . You can construct a Scanner object wherever it makes sense (probably in main , for a little example like this) and use...

Hello, I have a question regarding how if I would use Scanner to input different options each time I call the class? Or if there is another way? This is what I wrote for one of the coding bat questions public class CaughtSpeeding public static int ...