--%>

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 : State the term web service State the

    State the term web service?

  • Q : What is Catch clause Catch clause : It

    Catch clause: It is a part of a try statement accountable for handling the caught exception.

  • Q : Retrieve the text for ORA-12705 Normal

    Normal 0 false false

  • Q : Define Number of Interleavings Number

    Number of Interleavings: Besides the raw number of threads, the state space is affected by the number of potential interleavings of these threads. While there exist automated techniques (partial-order reduction) to reduce these interleavings, most mod

  • Q : Explain Cast Cast : Where Java does not

    Cast: Where Java does not allow the utilization of a source value of one type, it is essential to use a cast to force the compiler to admit the use for the target type. The care must be taken with casting values of primitive types, as this frequently

  • Q : Explain String String: It is an

    String: It is an instance of the String class. A string comprises of zero or more Unicode characters, and they are not mutable or immutable, once formed. The literal string is written between a pair of string delimiters ("), as:

    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 : What is Homogeneous collection

    Homogeneous collection: A group of objects with similar dynamic type. Arrays are the most general homogeneous collection objects.

  • Q : Program for Linux operating system that

    Write a program for Linux operating system that uses Posix threads to sort a large array.  Specifically, you should write a program to generate random numbers. Then create at least two threads, each of which sorts a portion of the array. After the thr

  • Q : What is Round robin allocation Round

    Round robin allocation: It is an allocation of time slices which repeatedly cycles regarding a set of eligible threads in the fixed order.