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Official Google Classroom Help Center where you can find tips and tutorials on using Google Classroom and other answers to frequently asked questions.
syntax - What does Class<?> mean in Java? - Stack Overflow
Nov 13, 2018 · Class is a parameterizable class, hence you can use the syntax Class<T> where T is a type. By writing Class<?>, you're declaring a Class object which can be of any type (? is …
css - What is the difference between the selectors ".class.class" and ...
Jun 30, 2013 · What is the difference between the selectors ".class.class" and ".class .class"? Asked 11 years, 11 months ago Modified 3 years, 2 months ago Viewed 79k times
Angular: conditional class with *ngClass - Stack Overflow
Feb 8, 2016 · Learn how to conditionally apply CSS classes in Angular using the *ngClass directive on Stack Overflow.
The difference between Classes, Objects, and Instances
Oct 8, 2015 · A class is a blueprint which you use to create objects. An object is an instance of a class - it's a concrete 'thing' that you made using a specific class. So, 'object' and 'instance' are …
class - Understanding Python super () with __init__ () methods
Feb 23, 2009 · next_class.__init__(self) break If we didn't have the super object, we'd have to write this manual code everywhere (or recreate it!) to ensure that we call the proper next …
class - What is the difference between private and protected …
Dec 5, 2016 · The derived class should be a type of your class, and the protected data of the base class is part of the data of the derived class. The writer of the derived class is expected …
oop - When to use an interface instead of an abstract class and …
Jan 26, 2009 · This may be a generic OOP question. I wanted to do a generic comparison between an interface and an abstract class on the basis of their usage. When would one want …
How do I resolve ClassNotFoundException? - Stack Overflow
Sep 9, 2016 · I am trying to run a Java application, but getting this error: java.lang.ClassNotFoundException: After the colon comes the location of the class that is …
templates - How to use Class<T> in Java? - Stack Overflow
However, what stumps me is the usage of Class<>. The java class Class is supposed to also take a template name, (or so I'm being told by the yellow underline in eclipse). I don't understand …