Create an instance of a class from a string
Is there a way to create an instance of a class based on the fact I know the name of the class at … Read more
instantiation
Creating an instance using the class name and calling constructor
Is there a way to create an instance of a particular class given the class name (dynamic) and pass parameters to its constructor. … Read more
Why is [] faster than list()?
I recently compared the processing speeds of [] and list() and was surprised to discover that [] runs more than three times faster … Read more
How to create a generic array in Java?
Due to the implementation of Java generics, you can’t have code like this: public class GenSet<E> { private E a[]; public GenSet() { … Read more
Class ‘Room’ is abstract; cannot be instantiated
Class ‘Room’ is abstract; cannot be instantiated
How to create a generic array in Java?
I have to ask a question in return: is your GenSet “checked” or “unchecked”? What does that mean? Checked: strong typing. GenSet knows explicitly what type of objects … Read more