--%>
Assignment Help - homework help

Reference variables

Reference variable behave similar to both, a value variable and a pointer variable. Value variable are used to hold some numeric values, pointer variable are used to hold the address of some other variable. In programme code reference variable is used similar to that of a value variable but has an action of a pointer variable." Reference variable benefits from the simplicity of the value variable and power of pointer variable". It does provide the flexibility supported by the pointer variable, unlike pointer when a reference is bound to a variable, then its binding cannot be changed. All the accesses made to the reference variable as same as to the access to which it is bound. The general format of declaring reference variable is:

 

Data type and reference variable + value variable

Where data type can be standard or user defined type:

Like Int, char, float etc.

& reference operator

The reference variable must be initialized to same variable only at the point of its declaration. Initialization of reference variable following its declaration sources compilation error.

 




 

   Related Questions in Programming Languages

  • Q : Define Bootstrap classes Bootstrap

    Bootstrap classes: The classes which make up the Java Platform Core Application Programming Interface (API), like those found in the java.lang, java.io and java.io packages.

    		•
  • Q : What is Pattern Pattern : It is a

    Pattern: It is a recurring theme in class usage or design. Interfaces like Iterator encapsulate a pattern of admission to the items in a collection, whereas freeing the client from the requirement to know details of the way in which the collection is

    		•
  • Q : Define the term Pixel Define the term

    Define the term Pixel: It is a `picture element' - usually a colored dot on a screen.

    		•
  • Q : Define HyperText Markup Language

    HyperText Markup Language: The HyperText Markup Language (abbreviated as HTML) is a simple presentation language employed to markup the content of the Web pages. Its tags appear frequently in pairs to mark sections of text which must be represented in

    		•
  • Q : Explain the signing mandatory within

    Explain the signing mandatory within S60 3rd Edition.

    		•
  • 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 : What is a Micro-chip Micro-chip : It is

    Micro-chip: It is a small electronic device employed to build computers and other electronic equipment. The chips are generally employed to supply the memory and processing components of the computer.

    		•
  • Q : Use of XMLHttpRequest object in AJAX

    What is the use of XMLHttpRequest object in AJAX?

    		•
  • Q : Define the term Protected statement

    Define the term Protected statement: It is a statement within the try clause of the try statement.

    		•
  • 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

    		•