The ability to make changes in your code without breaking the code of all others who use your code is a key benefit of encapsulation. You should always hide implementation details. To elaborate, you must always have your variables as private and then have a set of public methods that others can use to access your variables. Since the methods are public anyone can access them, but since they are in your class you can ensure that the code works the way that is best for you. So in a situation that you want to alter your code, all you have to do is modify your methods. No one gets hurt because i am just using your method names in my code and the code inside your method doesnt bother me much.
If you want maintainability, flexibility, and extensibility (and I guess, you do), your design must include encapsulation. How do you do that?
• Keep instance variables protected (with an access modifier, mostly private).
• Make public accessor methods, and force calling code to use those methods rather than directly accessing the instance variable.
• For the methods, use the JavaBeans naming convention of set and get.
identifies pieces of data as part of the same communication ensures that data pieces can be directed to the correct receiving end device enables the reassembly of complete messages identifies pieces of data as part of the same communication ensures that data pieces can be directed to the correct receiving end device enables the reassembly of complete messages
Identifies pieces of data as part of the same communication. Ensures that data pieces can be directed to the correct receiving end device. Enables the reassembly of complete messages
No, accessor member functions are a sign of good class design, particularly in terms of data encapsulation.
* addressing * error detection * frame delimiting
Primary functions provided by Layer 2 data encapsulation include data link layer addressing, and the detection of errors via cyclic redundancy check calculations. An additional function is delimiting groups of bits into frames.
abstraction and encapsulation is one of the concepts of OOPs and C is not an OOP [Object Oriented Programming language] obviously abst & encap will not be supported by 'C' Abstraction & encapsulation is a concept of OOP [Object Oriented Programming] But, 'C' is not an OOP whereas it is a POP [Procedure oriented programming], so obviously 'C' does not support abstraction and encapsulation Answer Encapsulation is not inherently supported but it can be emulated in C. The use of static and extern keywords for functions are almost equivalent to your private and public keywords in java (encapsulation). Read up more on those keywords.. Structures become an object's attributes while functions accepting pointers the the said struct become its methods.
Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.
a) Identifies pieces of data as part of the same communication b) Ensures that data pieces can be directed to the correct receiving end devices
1.genericity 2.polymorphism 3.objects and classes 4.data abstraction 5.data encapsulation 6.inheritence
encapsulation hdlc
programming objects are used to store variables (fields) which can be accessed or manipulated through the use of methods or functions. Objects are used as a means of data encapsulation.
Encapsulation is the ability to hide its data and methods from outside the world and only expose data and methods that are required
abstraction, inheritance, encapsulation, and polymorphism.
The router encapsulates the packet in the appropriate data link frame type for the outgoing data link. The router determines the exit interface after data encapsulation.