In contrast to C#, this declaration; …is an instantiation of the type Player, which means that by the time you’re assigning it inside the constructor, it has already been constructed without a parameter. What you need to do is to tell the class how to initialize player in what is called an initializer list that you append to the constructor … Read more
You use a forward declaration when you need a complete type. You must have a full definition of the class in order to use it. The usual way to go about this is: 1) create a file Cat_main.h 2) move to Cat_main.h. Note that inside the header I removed using namespace std; and qualified string with std::string. 3) include this … Read more
You can’t create arrays with a generic component type. Create an array of an explicit type, like Object[], instead. You can then cast this to PCB[] if you want, but I don’t recommend it in most cases. If you want type safety, use a collection like java.util.List<PCB> instead of an array. By the way, if list is already a java.util.List, you should use … Read more
A “wrapper class” is a de facto term meaning a class that “wraps around” a resource; i.e, that manages the resource. When people write a wrapper, then, they are doing something like this: This class manages (“wraps”) a pointer to an int. All resources should be wrapped in some fashion, for cleanliness (no explicit clean … Read more
I have this code And the compiler gave me this Warning for declaring the object slot1 under the private section in class Moveset. Although it gave me the warning but apparently it didnt affect the programme running. Does it actually affect anything? and what am I doing wrong here? Edit: And what is the diifference … Read more
In this case you need to go up to the <tr> then use .next(), like this: Or if there may be rows in-between without the .class inside, you can use .nextAll(), like this:
If all of your classes are in the same package, you shouldn’t need to import them. Simply instantiate the object like so: CustomObject myObject = new CustomObject();
If you have any source file that includes GameObjects.h before ProjectilObject.h or does not include ProjectilObject.h directly, then the compiler will first find the declaration of ProjectilObject through the include in GameObjects.h before knowing what WorldObject is. That is because GameObjects.h first includes ProjectilObject.h and then declares WorldObject. In that case the include of GameObjects.h … Read more
Finally, I modified the sort function in this manner to get sorted data.
If you will place your definitions in this order then the code will be compiled The definition of function doSomething requires the complete definition of class Ball because it access its data member. In your code example module Player.cpp has no access to the definition of class Ball so the compiler issues an error.