--%>
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 : What is Namespace Namespace: It is the

    Namespace: It is the region of a program in which specific identifiers are visible. Java employs packages to give namespaces, and its visibility rules: package, private, protected, public-variously include identifiers within the namespaces.

    		•
  • Q : Bank accounts Assignment &Code in JAVA

    Java Assignment Scenario:  Bank accounts Data structures need to be modelled with UML then created in Java

    		•
  • Q : What do you mean by the term JFC What

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

    		•
  • Q : Define debugging of joomla extension

    Define debugging of joomla extension.

    		•
  • Q : Define Class Class : It is a

    Class: It is a programming language concept which permits data and techniques to be grouped altogether. The class concept is basic to the notion of an object-oriented programming language. Methods of a class define the set of permitte

    		•
  • Q : Why is either inspection or walkthrough

    You were specified a chance to implement either inspections or walkthroughs. Based upon your personal experience that one would you decide? Please share your reason?

    		•
  • Q : What is applet? Explain life cycle of

    Ans. Applet: An applet is an application designed to travel over the internet and to be executed on the client machine by a java compatible

    		•
  • Q : Define the term RGB Color Model Define

    Define the term RGB Color Model: It is a color model based on representing a color as three components: green, red, and blue.

    		•
  • Q : Define Java virtual machine or JVM

    Define Java virtual machine (JVM): A Java Virtual Machine (JVM) is an abstract computing machine, or virtual machine (set of computer software programs and data structures) which is a platform-independent execution environment that converts Java bytec

    		•
  • Q : What is an Object construction Object

    Object construction: The creation of an object, generally through the new operator. Whenever an object is formed, a suitable constructor from its class is summoned.

    		•