--%>
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 : What is Hash code Hash code : It is a

    Hash code: It is a value returned by a hash function. A hash code can be employed as an index into a random-access data structure, offering a proficient mapping between an object and its position. Employed by classes like HashMap.

    		•
  • Q : OCIW32 dll error Normal 0 false false

    Normal 0 false false

  • Q : What is Application programming

    Application programming interface (API): It is a set of definitions that you can make use of it in writing programs. In the perspective of Java, these are the classes, packages, and interfaces which can be utilized to build complex ap

    		•
  • Q : Define the term Stack trace Define the

    Define the term Stack trace: It is a display of the runtime stack.

    		•
  • Q : Program and process Explain the term

    Explain the term program and process?

    		•
  • Q : Define the term SOAP Define the term

    Define the term SOAP.

    		•
  • Q : Explain Exclusive-or operator

    Exclusive-or operator: An exclusive-or operator (^) is both a Boolean operator and the bit manipulation operator. The Boolean version provides the value true when only one of its operands is true; or else it offers the value false. Likewise, the bit m

    		•
  • Q : Define Fully evaluating operator Fully

    Fully evaluating operator: An operator which computes all of its arguments to generate an outcome. Standard arithmetic operators, like +, are totally evaluating. In contrary, some Boolean operators, like &&, are short-circuit operators.

    		•
  • Q : Define Static nested class Static

    Static nested class: It is a nested class with static reserved word in its header. Dissimilar inner classes, objects of static nested classes contain no enclosing object. They are as well termed as nested top-level classes.

    		•
  • Q : What is Logical error Logical error :

    Logical error: It is an error in the logical of a class or method. Such an error may not lead to an instant runtime error, however could have a noteworthy impact on overall program exactness.

    		•