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What is a static data linkage?
Static data members of a class in namespace scope have external linkage. Static data members follow the usual class access rules, except that they can be initialized in file scope. Static data members and their initializers can access other static private and protected members of their class. The initializer for a static data member is in the scope of the class declaring the member. A static data member can be of any type except for void or void qualified with const or volatile. The declaration of a static data member in the member list of a class is not a definition. The definition of a static data member is equivalent to an external variable definition. You must define the static member outside of the class declaration in namespace scope.
How does Static RAM function?
Basically, it has two major functions: store data to a given address and retrieve data from a given address.
What do you mean by access specifier in c?
There are no access specifiers in C. All functions and data are public.
Explain static data member with the help of example?
Yes. Static data members are local to the class in which they are declared. Thus all instances of the class share the same variables (unlike non-static data members where each instance of the class has its own set of variables). Moreover, since static data members do not belong to any instance of the class, they are accessible without the need to instantiate an instance of the class, and like all other static variables, remain in scope for the entire duration the program is running. Also, as with all other static variables, they must be initialised at compile time from outside of the class declaration. Usually this is done from the class CPP file.Static member functions are similar to static data members in that they are local to the class, rather than to an instance of the class. Since they do not belong to any instance of the class, they do not inherit an implicit this pointer. As a result, they are accessible without the need to instantiate an instance of the class and will remain in scope for the entire duration the program is running.It is not unusual for a class to have both static data members and static member functions. They can be likened to global variables and global methods, but scoped to the class. However, their visibility can be restricted by the access specifiers enforced upon them (public, protected or private). Although static member functions cannot access instance methods and instance variables (unless an instance is physically passed to them as an argument) they have unrestricted access to the static data members of the class, as do all instances of the class and friends of the class.A classic example of static member functions and static data members in the same class is when one needs to maintain a count of all instances of a class. All the class constructors must increment the static counter while the destructor must decrement it. A static member function such as GetCount() can then report the number of instances currently instantiated, even when there are no instances.There are many other uses, but the golden rule is that they must be related to the class in which they are declared. If their purpose is simply to provide global functionality then declare them as such, or (better) limit their scope by declaring them in a separate class specifically for that purpose with private constructors to prevent any instances from being created (since none would be required).
What is classes in programing?
There are no classes in C; it is not an object-oriented programming language. C++ has classes. A class is a data type from which objects can instantiated in much the same way that an integer variable can be instantiated from an int data type in both C and C++. However, an int is a primitive data type; it has no member methods associated with it. The built-in operators are designed to operate upon primitive data types but those operators are not integral to the type. A class is more like a struct in C; an aggregate of data values. A class can contain both static data (data that is common to the class) and non-static data (data that relates to an instance of the class). However, as well as storing data, a class can also define member functions that operate upon that data, but that are scoped to the class (static member functions) or to an instance of the class (instance member functions). Unlike C where a struct's data members are always public, a C++ class can define separate public, protected and private data members (and functions), where private is the default access. A C++ struct is also a class, but one where the members are public by default. As such, a C++ struct can be used to create trivial "plain old data" classes that are compatible with C code as well as to create highly complex data types. Objects are self-contained entities where the member methods (functions and operators) have private access to the class representation. Non-member functions cannot gain access to this representation other than through public member functions or by being declared a friend of the class. The protected representation is the same as the private representation but is also accessible to derivatives of the class. Derivatives automatically inherit the public and protected members of their base classes, but not the private members. This makes it possible to derive more specialised classes from existing classes without have to duplicate the base class code.
Why private data members or functions are not inherited?
Because that's what private means. Private data members or functions are intended to be usable only in the base class, and the inheriting class can only access protected or public members or functions.
What is the difference between static data member and ordinary data member?
Static data is data that does not change from program load to program exit. Static data member do not apply for c. In c++, a static data member is one that is common for all instances of that class.
What stores an amount of data on the proxy server itself in order to speed up overall access to network data?
Anytime static data is stored to speed up access to it, it is using a method called caching. Usually this is called a proxy cache or a web cache.
What is class in C programming?
There are no classes in C; it is not an object-oriented programming language. C++ has classes. A class is a data type from which objects can instantiated in much the same way that an integer variable can be instantiated from an int data type in both C and C++. However, an int is a primitive data type; it has no member methods associated with it. The built-in operators are designed to operate upon primitive data types but those operators are not integral to the type. A class is more like a struct in C; an aggregate of data values. A class can contain both static data (data that is common to the class) and non-static data (data that relates to an instance of the class). However, as well as storing data, a class can also define member functions that operate upon that data, but that are scoped to the class (static member functions) or to an instance of the class (instance member functions). Unlike C where a struct's data members are always public, a C++ class can define separate public, protected and private data members (and functions), where private is the default access. A C++ struct is also a class, but one where the members are public by default. As such, a C++ struct can be used to create trivial "plain old data" classes that are compatible with C code as well as to create highly complex data types. Objects are self-contained entities where the member methods (functions and operators) have private access to the class representation. Non-member functions cannot gain access to this representation other than through public member functions or by being declared a friend of the class. The protected representation is the same as the private representation but is also accessible to derivatives of the class. Derivatives automatically inherit the public and protected members of their base classes, but not the private members. This makes it possible to derive more specialised classes from existing classes without have to duplicate the base class code.
What happens when you declare class as a static in Java?
Declaring an inner class static means that class only has access to the "outer" class public and private static fields. A non-static inner class has access to the outer class's instance data. Top-level classes cannot be declared static. The advantage of a static inner class is that it doesn't need an instance of the containing class to work and it's bytecode class size is smaller for that reason - less overhead.
Where the static variables are stored?
initialize static variables are stored in data segment where uninitialized static variables are stored in BSS(block storing for Symbol) it also a part of data segment exp static int i=10;//stored in data segment static int i;//stored in BSS (uninitialized data segment) Thanks NAvin
How is memory allocated to the private-data member function when an object is not created during the calling process?
A class can have both static and non-static data. Static data is local to the class while non-static data is local to each object of the class. It makes no difference whether static data is global, local to a file, local to a function or local to a class (whether public, protected or private), all static data is allocated within the program's data segment along with all constants. As such they are allocated at compile time.
