--%>
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 : Role of ScriptManagerProxy control?

    Explain the role of ScriptManagerProxy control?

    		•
  • Q : Define Encapsulation Encapsulation :

    Encapsulation: Safeguarding the state of objects by stating its attributes as private and channeling entrance to them via accessor and mutator techniques.

    		•
  • Q : What is High level programming language

    High level programming language: Languages like Ada, Java, C++, and so on which give programmers with features like control structures, classes, methods, packages, and so forth. Such features are mostly independent of any specific instruction set, and

    		•
  • Q : Calculate the summation of 1 to some

    Write two programs to calculate the summation of 1 to some integer n using a function called int summation(int n) a) Using a non recursive solution, with a for(i=1, i<=n; i++) loop and b) using a recursive solution, based on the following conditions summation(n) = summation(n-1

    		•
  • Q : Difference between JavaScript and AJAX

    Write basic difference between JavaScript and AJAX ?

    		•
  • Q : Short lock in the tibco iProcess

    Describe the term short lock in the tibco iProcess in brief.

    		•
  • Q : Define Radio buttons Radio buttons : It

    Radio buttons: It is a group of selectable components in which merely one component might be selected. The selection of one of the group that causes the previously chosen component to be deselected.

    		•
  • Q : Limit the Scope of Data Declarations

    Limit the Scope of Data Declarations at the smallest possible level is consistent with the well known principle of data hiding. It stops one module from inadvertently referencing and modifying data values which are only meant to be used by another mod

    		•
  • Q : Describe Last in-first out Last in,

    Last in, first out: It is the LIFO semantics of a stack data structure. Items are eliminated in the opposite order to which it arrived in the stack; therefore newer items are always eliminated before older ones.

    		•
  • Q : Who developed Extensible Hyper-Text

    Who developed Extensible Hyper-Text Markup Language? Answer: XHTML (Extensible Hyper-Text Markup Language) was developed by W3C HTML Working Group along with Steven

    		•