Php Oops Interview Questions & Answers

1) Explain what is object oriented programming language?
Object oriented programming language allows concepts such as modularity, encapsulation, polymorphism and inheritance. Objects are said to bethe most important part of object oriented language. Concept revolves around making simulation programs around an object. Organize a program around its data (object)& set well define interface tothat data. i.e. objects and a set of well defined interfaces to that data. OOP is the common abbreviation for Object-Oriented Programming. OOps have many properties such as DataHiding,Inheritence,DataAbsraction,Data Encapsulation and many more.
2) Name some languages which have object oriented language and characteristics?
Some of the languages which have object oriented languages present in themare ABAP, ECMA Script, C++, Perl, LISP, C#, Tcl, VB, Ruby, Python, PHP, etc. Popularity of these languages has increased considerably as they can solve complex problems with ease.
3) Explain aboutUML?
UML or unified modeling language is regarded to implement complete specifications and features of object oriented language. Abstract design can be implemented in object oriented programminglanguages. It lacks implementation of polymorphism on message arguments which is a OOPs feature.
4) Explain the meaning of object in object oriented programming?
Languages which are called as objectoriented almost implement everything in them as objects such as punctuations, characters, prototypes, classes, modules, blocks, etc. They were designed to facilitate and implement object oriented methods.5) Explain about message passing in object oriented programming?
Message passing is a method by which an object sends data to another object or requests other object to invoke method. This is alsoknown as interfacing. It acts like a messenger from one object to other object to convey specific instructions.
6) State about Java and its relation to Object oriented programming?
Java is widely...