--%>
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 Class Class : It is a

    Class: It is a programming language concept which permits data and techniques to be grouped altogether. The class concept is basic to the notion of an object-oriented programming language. Methods of a class define the set of permitte

    		•
  • Q : What is Control structure Control

    Control structure: A statement which affects the flow of control in a method. The typical control structures are if statements and loops.

    		•
  • Q : State machine to identify three

    Explain a finite state machine which will detect three consecutive coins tosses of one coin which results in heads?

    		•
  • Q : Define Byte code Byte code : Java

    Byte code: Java source files are converted by a compiler into bytecodes that is, the instruction set of the Java Virtual Machine (JVM). The Bytecodes are stored in the .class files.

    		•
  • Q : Basic Units of CSS Specify the Basic

    Specify the Basic Units of the CSS.

    		•
  • Q : Throughout system testing the

    Someone complains that throughout system testing the application frequently crashes. What probable process problem does which indicate?

    		•
  • Q : What is HSB Color Model HSB Color Model

    HSB Color Model: A color model based on symbolizing a color as 3-components: hue, saturation and brightness. This is at times termed as the HSV color model - hue, saturation and value.

    		•
  • Q : Define the term Key value Define the

    Define the term Key value: The object employed to produce an associated hash code for look-up in an associative data structure.

    		•
  • Q : Explain Twos-complement notation

    Twos-complement notation: In twos-complement notation, the most noteworthy bit in an integer value is employed as the sign bit. A 1 bit points out a negative number, and a 0 bit points out a positive number. The positive number can be transformed to i

    		•
  • Q : Type promotion rule Q. Explain type

    Q. Explain type conversion rules for basic data types in java. Ans. Type promotion rule: Java automatically each bits or short operant to int when evaluating an expression. As usual as the automatic promotion

    		•