When you write .class after a class name, it references the class literal – java.lang.Class object that represents information about given class. For example, if your class is Print, then Print.class is an object that represents the class Print on runtime. It is the same object that is returned by the getClass() method of any (direct) instance of Print.
A safe way is to serialize the object, then deserialize. This ensures everything is a brand new reference. Here’s an article about how to do this efficiently. Caveats: It’s possible for classes to override serialization such that new instances are not created, e.g. for singletons. Also this of course doesn’t work if your classes aren’t Serializable.
If I had to guess, you did this: at the top of your code. This means that you have to do this: to access the strptime method. Or, you could change the import statement to this: and access it as you are. The people who made the datetime module also named their class datetime:
jd-gui is the best decompiler at the moment. it can handle newer features in Java, as compared to the getting-dusty JAD.
If you define a class without any constructor, the compiler will synthesize a constructor for you (and that will be a default constructor — i.e., one that doesn’t require any arguments). If, however, you do define a constructor, (even if it does take one or more arguments) the compiler will not synthesize a constructor for you — at that … Read more
Why is cls sometimes used instead of self as an argument in Python classes? For example:
public, protected and private are access modifiers. Public means that the subject may be accessed by any class, protected by subclass, private by the class itself, no modifier means “package protected”, so the subject may be accessed by classes from the same package. Subject is class, method, member variable.
The first argument of all methods is usually called self. It refers to the instance for which the method is being called. Let’s say you have: Then, doing: There’s nothing special about this being called self, you could do the following: Then, doing: In your specific case: (As suggested in comments MissileDevice.RIGHT could be more appropriate here!) You could declare all … Read more
You’re defining the class in the header file, include the header file into a *.cpp file and define the class a second time because the first definition is dragged into the translation unit by the header file. But only one gameObject class definition is allowed per translation unit. You actually don’t need to define the … Read more
An “incomplete class” is one declared but not defined. E.g. as opposed to You need to #include “wielrenner.h” in dokter.ccp