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In the case of an instance variable, there is one copy for every instance (object). If you create 10 objects based on a class, there will be 10 copies of the variable. A class variable exists only once for the entire class - no matter how many objects you create - or even if you create no objects based on the class. In Java, such variables (class variables) are declared with the statickeyword.
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What is difference between an instance variable and a class variable?
An instance variable is typically associated with an object instance of the class whereas class variable is not associated with any object instance. Static variables are referred to as class variables while non-static regular variables are called instance variables. Simply put, you will have as many instances of the instance variable as there are object instances. i.e., if there are 10 instances of an object, you will have 10 instances of that instance variable as well. But, there will be only one instance of the static or class variable. Instance variables are accessed as follows: objname.variableName; Class variables are accessed as follows: ClassName.variableName;
What is the meaning of class size in statistics?
The difference between any two consecutive lower (or upper) class limits it the class width.
What is difference between struct variable and class object?
structure variable can access the variable but class object can access the function also
What is the difference between class intervals and class width in statistics?
Oh, dude, class intervals are the ranges that group data together in a frequency distribution, like 1-10, 11-20, etc. Class width is just the difference between the upper and lower boundaries of each class interval. So, basically, class intervals are like the neighborhoods where data hangs out, and class width is just the size of the houses in those neighborhoods.
What is Difference between local variable and data members or instance variable?
A data member belongs to an object of a class whereas local variable belongs to its current scope. A local variable is declared within the body of a function and can be used only from the point at which it is declared to the immediately following closing brace. A data member is declared in a class definition, but not in the body of any of the class member functions. Data members are accessible to all member function of the class.
