--%>
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 : Explain the relationship between XHTML

    Explain the relationship between XHTML and URL?

    		•
  • Q : What is Reflection Reflection : It is

    Reflection: It is the ability to find out what fields, methods, constructors, and so forth, are stated for an object or class. Reflection is supported by the Class ‘class’, and other classes in the java.lang.reflect package. Reflection mak

    		•
  • Q : Explain Command-line argument

    Command-line argument: The arguments passed to a program whenever it is run. The Java program receives such in the single formal argument to its major method: public static void main(String[] args)

    		•
  • Q : Basic programming help In C Language 1.

    1. In what ways are the initialization, repetition test, and update steps alike for a sentinel-controlled loop and an endfile-controlled loop? How are they different? 2. Rewrite the program segment that follows using a for loop: count = 0;

    		•
  • Q : Source and listener What do you mean by

    What do you mean by the term source and listener?

    		•
  • Q : Explain Do loop Do loop : This is one

    Do loop: This is one of Java's three control structures employed for looping. The other two are the for loop and while loop. A do loop comprises of a loop body and a Boolean expression. The condition is tested subsequent to the loop body has been fini

    		•
  • Q : Define the term server-side XPointer

    Define the term server-side XPointer?

    		•
  • Q : Explain the way to back-up active

    Explain the way to back-up active directory.

    		•
  • Q : Define Accessor method Accessor method

    Accessor method: A technique specifically designed to offer access to a private attribute of a class. By convention, we name accessors with a get prefix followed by the name of the attribute being accessed. For example, the accessor for an attribute n

    		•
  • 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.

    		•