--%>
Assignment Help - homework help

Explain Variable declaration

Variable declaration: It is the association of a variable with a specific type. It is significant to make a distinction among the declaration of variables of primitive types and such of class types. The variable of primitive type performs as a container for the single value of its declared type. The declaration of variable of a class type doesn’t automatically causes an object of that type to be constructed and, by default, the variable will encompass the value null. The variable of a class type performs as a holder for a reference to an object which is compatible with the variable's class type. The Java's rules of polymorphism permit a variable of a class type to hold a reference to some object of its declared type or any of its sub-types. The variable with a declared type of Object, thus, might hold a reference to an object of any class, consequently.

   Related Questions in Programming Languages

  • Q : Define Double buffering Double

    Double buffering: A graphics method employed to smooth animation. The later version of an image is drawn `at the back the scenes' and then exhibited in its totality whenever the drawing is finished. The supposition is that it will be relatively fast t

    		•
  • Q : Explain the important thing to HTML

    Explain the important thing to HTML document authors.

    		•
  • Q : Define Single line comment Single line

    Single line comment: A comment is in the form:     // this line will be avoided by the compiler.

    		•
  • Q : What is Left shift operator Left shift

    Left shift operator: Left shift operator (<<) is the bit manipulation operator. This moves the bits in its left operand zero or additional positions to the left, according to the value of its right operand. The zero bits are added up to the righ

    		•
  • Q : Explain the Automated Software testing

    Explain the Automated Software testing life cycle.

    		•
  • Q : Define Abstract class Abstract class :

    Abstract class: It is a class with the abstract reserved word in its header. The Abstract classes are differentiated by the fact that you might not directly construct objects from them employing the new operator. The abstract class might have zero (0)

    		•
  • Q : Functions of System calls Show what are

    Show what are the different functions of System calls?

    		•
  • Q : Types of rings in CPU Name the

    Name the different kinds of rings presented in CPU?

    		•
  • Q : Function prototypes Function prototypes

    Function prototypes: Function declaration which specifies the function name, return type and parameter list of the function. Syntax: return_type function_name(type var1, type var2,…

    		•
  • Q : Updating the Status of an Order in SQL

    Build a procedure named STATUS_SHIP_SP which permits a company to employee in the Shipping Department to update the status of an order to add up shipping information. The BB_BASKETSTATUS table maintains a list of events for each order and hence a shopper can see the c

    		•