--%>
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 : Describe Uninitialized variable

    Uninitialized variable: It is a local variable which been declared, however has had no value allocated to it. The compiler will warn of variables that are employed before being initialized.

    		•
  • Q : Define the term Boolean Boolean : It is

    Boolean: It is one of the Java's primitive types. The Boolean type has merely two values: true and false.

    		•
  • Q : What is Classpath Classpath : The path

    Classpath: The path searched by interpreter and compiler for class definitions. The class path might be set by a command-line argument to either, or through an environment variable.

    		•
  • Q : Advantages of Object oriented

    Q. What are the advantages of Object Oriented Programming languages? Explain them. Ans. : Object oriented programming language has following advantages-

    Q : Define the term Interface inheritance

    Interface inheritance: Whenever a class implements an interface, the interface inheritance relationship exists among them. The class inherits no implementation from interface, just method signatures and static variables. It is as well possible for one

    		•
  • Q : Kernel Mode Illustrate what are the

    Illustrate what are the different functions of Kernel Mode, interrupts and system calls?

    		•
  • Q : Define the term Top level class Define

    Define the term Top level class: It is a class defined either at outermost level of a package or the static nested class.

    		•
  • Q : Explain Program counter Program counter

    Program counter: A program counter is an integral portion of a computer's Central Processing Unit. It includes a reference to the memory address of the subsequent instruction to be fetched, ready to be executed throughout the next fetch-execute cycle.

    		•
  • Q : CSS and CSS3 State some of the

    State some of the difference between the CSS and the CSS3.

    		•
  • Q : Define Bogor Bogor (Robby, Dwyer, and

    Bogor (Robby, Dwyer, and Hatcliff 2006) is an extensible software model-checking framework which includes: Software model checking algorithms Visualizations A user interface designed to

    		•