--%>
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 : Cmp and diff commands Explain the

    Explain the difference between” cmp” and “diff” commands?

    		•
  • Q : What is Actual argument Actual argument

    Actual argument: The value of an argument enacted to a method from exterior to the method. Whenever a method is called, the real argument values are copied into analogous formal arguments. The kinds of the actual arguments should be compatible with th

    		•
  • Q : Overriding a base class method in

    Explain the way to overriding a base class method in Visual Studio .NET and in Visual Studio 2005.

    		•
  • Q : Operator overloading and Constructor Q.

    		•
  • Q : Explain Message passing Message passing

    Message passing: We characterize the object interactions as message passing. The client object sends a message to a server object by invoking a technique from the server's class. Arguments might be passed with the message, and a outcome is returned by

    		•
  • Q : What is Discrete simulation Discrete

    Discrete simulation: In a discrete simulation, the time passes at an irregular rate which is determined by the primary events of interest in simulation.

    		•
  • Q : Define Final variable Final variable :

    Final variable: A variable with final reserved word in its declaration. The final might not assigned to once it has been initialized. Initialization frequently occurs as a part of its declaration. Though, the initialization of an uninitialized final f

    		•
  • Q : What is Final method Final method :

    Final method: This is a method with the final reserved word in its header. The final method might not be overridden by a method stated in a sub class.

    		•
  • 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 : Print the factors of each perfect number

    An integer number is said to be a perfect number if its factors, including 1 (but not the number itself), sum to be the number. For example, 6 is a perfect number because 6 = 1+ 2+ 3. Write a function perfect that determines if parameter number is a perfect number. Us

    		•