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A friend function is a function that cannot be declared a member of a class but which requires private access to that class. For example, a function that operates upon two different classes cannot be a member of both classes, but if the function requires private access to both classes then it has to be a friend to at least one of them.
To fully appreciate friend functions, consider that a non-static member function has the following three properties:
- Has private access to the class.
- Is scoped to the class.
- Must be invoked against an object of the class (has a 'this' pointer).
Static member functions have the first two properties only while friend functions have the first property only. All other non-member functions have none of these properties.
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What is Data Hiding in VBNET?
Data hiding is used method used in Object-Oriented programing to hide information within computer code
What is copy constructor in object oriented programming?
The purpose of constructor in object oriented programming is to initialize data. Likewise copy constructors are used to initialize an object with data from another object.
What are examples of Object Oriented programming language?
Machine code, assembly language and C are all non-object oriented programming languages. Fortran, COBOL, Pascal and BASIC were originally non-object oriented languages but there are now object-oriented variants of these languages. C++, C# and Java were all designed with object-oriented programming in mind from the outset.
Can object oriented approach used to create database?
Yes
What is the difference bitween object oriented testing and conventional testing?
Conventional testing is the traditional approach to testing mostly done when water fall life cycle is used for development, while object oriented testing is used when object oriented analysis and design is used for developing enterprise software. Conventional testing focuses more on decomposition and functional approaches as opposed to object oriented testing, which uses composition. The three levels of testing (system, integration, unit) used in conventional testing is not clearly defined when it comes to object oriented testing. The main reason for this is that OO development uses incremental approach, while traditional development follows a sequential approach. In terms of unit testing, object oriented testing looks at much smaller units compared to conventional testing.
What is the difference between object oriented testing and conventional testing?
Conventional testing is the traditional approach to testing mostly done when water fall life cycle is used for development, while object oriented testing is used when object oriented analysis and design is used for developing enterprise software. Conventional testing focuses more on decomposition and functional approaches as opposed to object oriented testing, which uses composition. The three levels of testing (system, integration, unit) used in conventional testing is not clearly defined when it comes to object oriented testing. The main reason for this is that OO development uses incremental approach, while traditional development follows a sequential approach. In terms of unit testing, object oriented testing looks at much smaller units compared to conventional testing
What is 'this' in c?
There is no 'this' in C. C is not an object-oriented language. C++, however, is object-oriented. The 'this' pointer is used by non-static member functions to determine which instance of a class the function should operate upon.
When was object oriented programming invented?
Making it's appearance in the late 1950's and early 1960's, object-oriented programming (OOP) was developed and first used at Massachusetts Institute of Technology.
What are the differences between object-oriented testing of software and convectional software testing?
Conventional testing is the traditional approach to testing mostly done when water fall life cycle is used for development, while object oriented testing is used when object oriented analysis and design is used for developing enterprise software. Conventional testing focuses more on decomposition and functional approaches as opposed to object oriented testing, which uses composition. The three levels of testing (system, integration, unit) used in conventional testing is not clearly defined when it comes to object oriented testing. The main reason for this is that OO development uses incremental approach, while traditional development follows a sequential approach. In terms of unit testing, object oriented testing looks at much smaller units compared to conventional testing.
What is the role of the constructor?
Several meanings for "constructor". In object-oriented programming, it is the subroutine used to create an object. The programmer can add commands here, to get the object ready for his needs; for example, initialize the variables used in the object.
Chen-Chen methodology used for object oriented design?
it is chen and chen so its simple.......
What does oop stand for?
OOP (Object Oriented Programming) is the implementation phase of OOD. OOD (Object Oriented Design) is a philosophy that considers things as objects that have attributes and methods. There can be public attributes and methods, and there can be private attributes and methods. The public interface is used to design the relationship between the object and its users, while the private interface is used to design the implementation of how that object works. If done correctly, the private implementation can be changed without requiring any change to the public interface or to its users. Often, a new object can be defined as a derivation of some other object, such as an officer is an employee. The derivation would add the necessary public and private aspects of an officer while inheriting the prior implementation of the public and private aspects of an employee.
