--%>
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 : Define Object serialization Object

    Object serialization: The writing of an object's contents in such a manner that its state can be restored, either at a later time, or in a different procedure. This can be employed to store objects between runs of a program, or to transfer or shifts o

    		•
  • Q : Describe Method Method : The portion of

    Method: The portion of a class definition which implements some of the behavior of objects of the class. The body of the method includes declarations of local variables and statements to execute the behavior. The method receives input through its argu

    		•
  • Q : Use of UpdateProgress control in AJAX

    What is the use of UpdateProgress control in AJAX?

    		•
  • Q : Define Loop variable Loop variable : A

    Loop variable: A variable employed to control the operation of a loop, like a for loop. Usually, a loop variable will be provided an initial value and it is then incremented after each and every iteration till it passes or reaches a terminating value.

    		•
  • Q : What is a Real-Time System What is a

    What is a Real-Time System?

    		•
  • 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 : Who Issues Certificates and how Who

    Who Issues Certificates and How?

    		•
  • Q : C programming assignment help S trings,

    Strings, Pointers, Arrays, Structures, and File I/O in C In this lab you will develop a few programs that will give you some practice with pointers, arrays, str

    		•
  • Q : Define Assembler Assembler : The

    Assembler: The program employed to translate a program which is written in assembly language into the binary form of a specific instruction set.

    		•
  • Q : Give some instances of XML DTDs or

    Give some instances of XML DTDs or schemas which you have worked with?

    		•