--%>
Assignment Help - homework help

Explain Upcast

Upcast: It is a cast towards an object's ultimate super type - which is, `up' the inheritance hierarchy towards the Object class, for example:

        // Upcast from VariableController to HeaterController
        VariableController v;
        ...
        HeaterController c = v;

   Related Questions in Programming Languages

  • Q : Define Number of Threads Number of

    Number of Threads: Threads can be a useful abstraction and implementation mechanism to partition independent program actions. However, when there is coordination (or interference) between these threads, the required synchronization mechanisms increase

    		•
  • Q : Define Permission Normal 0 false false

    Normal 0 false false

  • Q : Define Aliases Aliases : It is a

    Aliases: It is a multiple references to a single object. Messages might be sent to the object through any of its aliases. The resultant state modifications will be detectable by all.

    		•
  • Q : Define Formal argument Formal argument

    Formal argument: The definition of a method’s argument is the part of a method header. Each and every formal argument has an associated type. Whenever a method is called, the actual argument values are copied into the analogous formal arguments.

    		•
  • Q : Define Out of scope Out of scope : It

    Out of scope: It is a variable is in scope as long as the program's flow of control is in the variable's defining block. Or else, this is out of scope.

    		•
  • Q : Define Class scope Class scope :

    Class scope: Private variables stated outside the methods in a class contain class scope. They are available from all methods within a class, in spite of the order in which they are stated. The private methods too contain class scope. Variables and me

    		•
  • Q : Pointer in C What is pointer? What

    What is pointer? What significance of pointer in C programming languages?

    		•
  • Q : Explain the differences between HTML

    Explain the differences between HTML and XML?

    		•
  • Q : Explain Polling Polling : It is the

    Polling: It is the process of repeatedly testing until a situation becomes true. Polling can be incompetent when the time between tests is little compared with the time it will take for the condition to become true or right. A polling thread must slee

    		•
  • Q : Define the term Critical section

    Critical section: It is a section of code in which there is potential for a race hazard. The critical sections made use of the synchronized statements or methods.

    		•