--%>
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 : What is Single inheritance Single

    Single inheritance: In Java, a class might not extend more than one class. It means that Java has a single inheritance model for the class inheritance.

    		•
  • Q : What is Super class Super class: It is

    Super class: It is a class which is extended by one or more sub classes. All Java classes encompass the Object class as a super-class.

    		•
  • Q : Explain Test Object Model Define the

    Define the terms Test Object Model, Test Object and Run-Time object?

    		•
  • Q : What do you mean by java AWT What do

    What do you mean by the term java AWT? Describe in brief.

    		•
  • Q : Explain Timesharing system Timesharing

    Timesharing system: It is an operating system which shares processor time among multiple processes by assigning each a time slice. Once a process's time slice has finished or expired, the other procedure is given a possibility to run.

    		•
  • Q : What is Avoid Redundancy Avoid

    Avoid Redundancy: While not every form of redundancy is as bad from a verification perspective as it is from a maintenance point of view, behavioral redundancy to re-create (local) state can impose problems because the model checker does not distingui

    		•
  • Q : Define the term Instance Define the

    Define the term Instance: It is a synonym for object. The objects of a class are instantiated whenever a class constructor is invoked through the new operator.

    		•
  • Q : Define the features of DTD Define the

    Define the features of DTD?

    		•
  • Q : Detecting sequence in signal line

    Explain how to detect a sequence of ‘1101’ arriving serially from the signal line?

    		•
  • Q : What is an IP address IP address : An

    IP address: An Internet Protocol (abbreviated as IP) address for a networked computer. Presently, IP addresses comprises of 4-byte values, written in dotted decimal notation, like 129.12.0.1. In future, IP addresses will be 16-bytes long to accommodat

    		•