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Can you have two classes with the same name?
Yes, when you import classes with the same simple names, you must refer to them by their fully qualified class names. I would leave the import statements in, as it gives other developers a sense of what is in the file when they are working with it. D.C.
Can you have two classes with the same name in Java?
Classes in different packages can have the same name. For example, you have the two classes java. util. Date and java.
Is it also possible to have a class with the same name as the name space?
The Framework Design Guidelines say in section 3.4 “do not use the same name for a namespace and a type in that namespace”. That is: namespace MyContainers. List { public class List { … } }
How many instances of an abstract can be created?
No you can’t, instead you can create instance of all other classes extending that abstract class. Because it’s abstract and an object is concrete. An abstract class is sort of like a template, or an empty/partially empty structure, you have to extend it and build on it before you can use it.
What is using static?
using static is a new kind of using clause that lets you import static members of types directly into scope. (Bottom of the blog post) The idea is as follows, according to a couple of tutorials I found, Instead of: using System; class Program { static void Main() { Console.WriteLine(“Hello world!”
Which are the qualities of multiple inheritance?
Multiple inheritance allows programmers to use more than one totally orthogonal hierarchy simultaneously, such as allowing Cat to inherit from Cartoon character and Pet and Mammal and access features from within all of those classes.
When to not use the same name for multiple classes?
If you anticipate a situation where more than one of the same-named classes might need to be used within the same code context, this is a reason not to use the same name. That is, if you need to work with hr.Employee but at the same time need to look at permissions via security.Employee, it’s going to get annoying real fast.
When to use the same name with different namespaces?
Conversely, if your classes with the same name all have the same or very similar APIs, then that’s a good example of when you should use the same name with different namespaces. The Scala example is precisely this, where all the Map classes implement the same interface or are subclasses of each other.
Can You import two classes with the same name in Java?
And you can’t rename the classes in either place (again, the job is to map, not to go change what someone else did). Fully qualified is one way. It appears you can’t actually include both import statements, because Java gets worried about which “Person” is meant, for example.
Why are two device classes in the same source?
But seeing both Device classes in one source might as well be a hint that the source violates the single-responsibility principle by mixing tasks from the model and the data world. Thanks for contributing an answer to Software Engineering Stack Exchange!