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class B; // forward declaration. class A { private: void myFunction(B b){b.myFunction();} // Calls private method in b. }; class B { friend void A::myFunction(B b); // Friend function declaration. private: void MyFunction(); };
In Flex, you access a private variable by calling it from within that class. Remember, the "private" modifier means it cannot be directly accessed outside of the class you declare it in (note I say "directly accessed" you can indirectly access it via public functions which I will show below). Example: declare your variable at the top of your class like this: private var myVariable:String; Then, inside one of your functions of that class, you can access the variable and/or assign it this way: public function changeMyVariable(value:String):void { // sets the private variable to a custom string myVariable="test String"; trace("myVariable is set to "+myVariable); // sets the private variable to the argument passed in myVariable = value; trace("myVariable is now set to" +myVariable); }
True. A derived class can make a public base function private. The derived function is private, within the derived class, but public in other contexts.
The Scope of a variable defines the areas of a program where this variable would be visible and can be used. For ex: a. Method variables - are visible only inside the method where they are declared and hence their scope is only the method b. Class variables - are visible inside the class and can be used by any method inside the class and hence their scope is the whole class.
Class Variables or Instances variables are variables that are declared inside a class and are available for the whole class. They are available for all instances of that class and are not specific to any method. Ex: public class Test { private String name = "Rocky"; } Here name is a class variable.
class B; // forward declaration. class A { private: void myFunction(B b){b.myFunction();} // Calls private method in b. }; class B { friend void A::myFunction(B b); // Friend function declaration. private: void MyFunction(); };
The default access specifier for a class is private. The default access specifier for a struct is public. It does not matter if it is a function or a variable.
The 'private' keyword in vb.net is commonly used in variable declaration or sometimes in creating functions. This means that when a variable or function is created privately (eg private variable1 as integer), the class that contains that variable/function will be the only class that will have access to it. Here's an example: class form1 Private variable1 As Integer=5 end class _______________________ class form2 end class form2 will not be able to access form1's variable1 because it is declared as Private. To make form1's variable1 usable to form2 it should be declared as Public variable1 As Integer=5. I hope i've given you a clear explanation. Good luck on your programming mate!
Private variables can only be accessed from outside of a class by using any public function of that same class. Or this can be accomplished by using Friend functions.
In Flex, you access a private variable by calling it from within that class. Remember, the "private" modifier means it cannot be directly accessed outside of the class you declare it in (note I say "directly accessed" you can indirectly access it via public functions which I will show below). Example: declare your variable at the top of your class like this: private var myVariable:String; Then, inside one of your functions of that class, you can access the variable and/or assign it this way: public function changeMyVariable(value:String):void { // sets the private variable to a custom string myVariable="test String"; trace("myVariable is set to "+myVariable); // sets the private variable to the argument passed in myVariable = value; trace("myVariable is now set to" +myVariable); }
A private variable is something that is not visible outside the class. A private class is one that cannot be inherited
The storage class specifiers in C and C++ are:autoexternmutableregisterstatictypedefA storage class specifier is used to refine the declaration of a variable, a function, and parameters
structure variable can access the variable but class object can access the function also
True. A derived class can make a public base function private. The derived function is private, within the derived class, but public in other contexts.
A private variable is one that is accessible only to the current class and cannot be accessed by any other class, including the ones that extend from it. A final variable is one that cannot be modified once it is initialized and assigned a value.
The accessibility. The global one: almost everywhere in the code may reference to the global variable directly. The private variable, is private to the declaring module (class, method, assembly) only. Outside of that module has no access to it directly.
The Scope of a variable defines the areas of a program where this variable would be visible and can be used. For ex: a. Method variables - are visible only inside the method where they are declared and hence their scope is only the method b. Class variables - are visible inside the class and can be used by any method inside the class and hence their scope is the whole class.