--%>
Assignment Help - homework help

Explain Global variable

Global variable: It is a phenomenon which is more generally regarded as being a trouble in structured programming languages than in object-oriented languages. In structured programming language, like C or Pascal, a global variable is one stated outside the procedures and functions of a program. This is hard to keep track of the usage of this variable as it is readable and writable by the entire program or module in which it is stated. This makes these variables a general source of logical errors. However, instance variables pose a similar trouble within class definitions, as Java's scope rules make them available to all methods stated within a class. This is one of the reasons why we favor to channel access to instance variables via accessor and mutator techniques even in a class.

   Related Questions in Programming Languages

  • Q : State Space Reduction in Java PathFinder

    State Space Reduction: JPF is a so-called explicit-state model checker, as it enumerates all visited states, and therefore suffers from the state explosion problem inherent in analyzing large programs. It also contains garbage collection, because a ty

    		•
  • Q : Define Deep copy Deep copy : It is a

    Deep copy: It is a copy of an object in which copies of all the object's sub-components are also prepared. The resultant object may, in effect, be a clone of the novel.

    		•
  • Q : Risks associated while porting a c pre

    Q. 1 Explain number of issues which are faced while porting a c pre processor in java. These issues always have the probability that the code will show errors while trying to execute the code in java.  Q.2 : Software Requirement Specification or Requirements for the studen

    		•
  • Q : Define Applet Applet : The Applets are

    Applet: The Applets are Java programs based on the Applet or JApplet classes. They are closely related with the capability to give active content within the Web pages. They have numerous features that differentiate them from ordinary Java graphical ap

    		•
  • Q : What is the use of compatibility testing

    What is the use of compatibility testing?

    		•
  • Q : Define the term Interprocess

    Define the term Interprocess communication: It is the ability of two or more separate processes to communicate with each other.

    		•
  • Q : State Null character State Null

    State Null character: The \u0000 character. The care must be taken not to confuse this with null reference.

    		•
  • Q : What is a Method body What is a Method

    What is a Method body: It is a body of a method: everything within the outermost block of the method.

    		•
  • Q : Special set of tags in PHP Normal 0

    Normal 0 false false

  • Q : Mission Critical Systems or a real-time

    Determine the important aspect of Mission Critical Systems or a real-time system.

    		•