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In our previous Article, we have discussed about Getter and Setter methods in Ruby. We no need to add these methods explicitly; instead, Ruby provides a way to Automatically generate these methods to us. In this Article, we will discuss about generating Getter and Setter methods Automatically in Ruby. The attr_ methods Ruby provides keywords, […]
In our previous article, we discussed generics in Java. There are a few constraints that we can impose while working with Generics using extends and super keywords. The ‘extends’ keyword with respect to class Let’s create the Demo<T> class using extends keyword. class Demo<T extends Number> { T value; } This implies that the class […]
Ruby allows defining class and instance variables. Ruby doesn’t allow us to access the variables of the class directly; instead, we can use methods to access or modify the variables of the class. We have discussed an overview of classes in Ruby through my previous Article “Ruby Programming – An Overview on Classes“. Through this […]
Java is a type-safe language. In the sense, in Java, it is required to specify the data type of the variable or the method argument while declaring it. For instance, see the examples below: int var = 5; // type of the variable is int void show(String arg){} // type of the argument arg is […]
We have discussed an introduction to the Classes in Ruby in my previous Article “Ruby Programming – An Overview on Classes“. There we have seen defining classes and creating objects to the classes using the class’s new method. And also discussed that the classes have instance methods and class methods. There are different ways we […]
Windows device context is the key GDI element that refers a physical device. Device contexts are used to draw to the physical device; screen, printer, etc,. MFC provides different wrapper classes; and each class is associated with Windows device context. Through this article, we are going to discuss different MFC’s Device Context classes. CDC class […]
As we discussed in our previous Articles, Ruby is a pure object-oriented language. That means, everything is an object of a class in Ruby. Non-object things are NOT exists in Ruby. Unlike C++ where you can write the program without classes or objects; in Ruby we CAN NOT write programs without classes or objects. Hence […]
A linked list is a collection of nodes or elements that we can traverse within the list. A node or an element is a basic structure to create a list. A node contains a data part and the address to the next node, in order to form a list. Lets’ go through the steps needed […]
In our previous article “Win32 Programming – Register the window class“, we have created our GUI-based Application window and successfully displayed it on the screen. And we observed that the window was closed, immediately; because no user interaction code was added. We had a couple of questions in our previous article; we will try to […]
Ruby is a pure object-oriented programming language. That means, everything is an object in Ruby. For example, 3 is an object of Number class. If you type 3.methods; it will return all the methods defined in the Number class. Similarly, if you type 3.class; you will see the type of the class this object is […]