--%>

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 the way to threads own the mutex

    Define the way to threads own the mutex?

  • Q : Maintaining audit trail of product

    The accuracy of product table data is crucial and the Brwebean’s. owner prefers to have an audit file which contains information regarding all DML activity on the BB_PRODUCT table. This information must point out the user id of the user running a DML statement,

  • 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 Propagation Propagation : When

    Propagation: When an exception is thrown in a method, and there is no suitable exception handler within the method, the exception might be propagated to the caller of the method. For a checked exception, the method should include a throws clause in it

  • Q : What are Literals What are Literals and

    What are Literals and also state their respective types?

  • Q : Define Bounds Bounds : It is the limits

    Bounds: It is the limits of an array or collection. In Java, the lower limit is for all time zero (0). In case of an array, the upper bound is one less than the length of the array, and is fixed. Indexing exterior the bounds of an array or collection

  • Q : Which kernel objects is utilize for

    Which kernel objects is utilize for thread Synchronization on various processes? Answer: For thread synchronization on various processes kernel objects are utilize

  • Q : Explain the term Web Services

    Explain the term Web Services Description Language.

  • Q : Task decomposition and Data

    Discuss the idea of task decomposition and data decomposition within the perspective of parallel programming.

  • Q : Swapping system What action of the

    What action of the swapping system does in case it identifies the illegal page for the swapping?