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What else can I help you with?
Can static variables be changed?
No, a static variable means that there is only one copy of that variable, and it is shared by all members of the class, or by all callers of a function.A variable that is read-only would be marked as const or final (depending on language).
It is perfectly legal to any instance variable inside of a static method?
No. You will get compilation errors. The complier will complain that you are trying to access non static variables from inside a static method. A static method can access only static variables.
Which keyword is used with variables to keep them permanently within the functions?
static
How can we optimize performance by reducing static in our codebase?
To optimize performance by reducing static in our codebase, we can minimize the use of global variables and functions, utilize local variables and functions instead, and employ techniques such as encapsulation and modularization to limit the scope of static elements. This can help improve code readability, maintainability, and efficiency.
What types of functions cannot be made virtual?
Static member functions, member function templates and constructors cannot be virtual.
What are global variables in c?
The ones that are declared outside any functions and don't have modifier static.
Are static variables serialized in java?
No, static variables are not serialized.
How you declare class scoped variables and member functions?
To scope class members to the class (rather than to instances of the class), declare them as static members of the class. Static members are accessible even when no instances of the class exist. As such, static member functions do not have access to a 'this' pointer, unlike ordinary (nonstatic) member functions.
Can a static method access instance variables?
Variables cannot access variables; only methods can access variables. Non-static methods (also known as instance methods) are local to an object of the class and therefore have access to a "this" reference (referring to the current instance of the class, the object upon which the method was invoked), but static variables are local to the class itself. These variables are shared by all objects of the class and are therefore accessible to non-static methods. Static variable are also accessible to static methods and are therefore accessible even when no objects of the class exist.
How do you access the static variable and static methods of a class?
In java we access static variables and static methods without creating objects. i.e.,we can access directly by using classname we can also access static variables and static methods by using objects which are created by using class where the static variables and static methods are available
Can variables be changed?
A static variable is one which is not stored on the stack but in the memory of the program. Static variables can be changed.
What is difference between Static and Global variable?
Static may be local of global -local static variable is limited to the function scope. and retain it's value when function is been called . compiler differentiate static variables with a prefix function name while dealing with same name static variable in different functions. - Global static variable is visible to all the function defined in the file and retain it value but it cannot be used outside this file. now Global Variable --- this variable is also visible to all of the functions inside the file but also can be used outside the file via extern keyword.
Why memory is divided into initialized and uninitialized areas?
The program's data segment. This area of memory is allocated by the linker and is used to store the program's global variables, static variables, static arrays and constants. Constants are always initialised, as are static variables, but global variables and static arrays need not be initialised.
Can non static methods can access static variables?
Yes, they can
Why can not define private and protected modifiers for variables in interface?
No. Interface variables are supposed to be public static final. Interfaces, like abstract classes, cannot be instantiated, so all variables in an interface must be static final ones. They are public because usually interfaces are used throughout an application, and this will ensure versatility.
Is it possible to write in static variables in main method in java?
Short answer: No. Only class member variables may be declared static. Local variables with a static declaration will throw an error (usually "illegal start of expression").
Are static variable created by giving keyword static in java?
yes bcoz static variables
Is declaration of variables allocated memory?
Constants, static variables and global variables are allocated in the program's data segment at compile time. Local variables are allocated on the stack at runtime. Variables cannot be allocated on the heap, you must use a constant, static variable, global variable or local variable to store the start address of a dynamic memory allocation. The variable must be a raw pointer or a reference handle (a smart pointer).
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
What are the storage classes in c?
A storage class defines the visibility and lifetime of variables or/and functions within a C Program. There are following storage classes which can be used in a C Program: auto register static extern
