Static In Java

In your java programming tutorials, you may have come across static keyword in java and wonder what it is and how it works. Worry no more because this article will give you detailed information on static keyword in java.

Static means a non access modifier. The static keyword can be applied to:

1. Variable

2. Method

3. Initialization block

4. Class nested within another class

However, it is not applicable to:

1. Constructor

2. Class

3. Interfaces

4. Inner class methods

5. Instance variables

6. Method local inner class

7. Local variables

Importance of static keyword in Java

The purpose of static keyword in java is to attach a variable or method to a class. The method or variable that is marked static belongs to the class rather than to any instance. Static variables and methods can be used without having any instance of the class. To invoke a static variable or method, only a class is required.

Class variables

These are also known as static fields and they share characteristic across all objects within a class. When a field is declared to be static, only a single instance of the associated variable is created and it is common to all the objects of that class. Thus, when an object changes the value of a class variable, it affects all the objects of the class. In order to access a class a variable you can use the name of the class.

Class methods

They are also known as static methods. They are quite similar to class variables but they can be invoked without having an instance of the class. Class methods are often used to provide global functions for java programs. Note that you cannot call non-static methods from inside a static method.

Rules of static keywords in java

1. Methods or variables that are marked static belong to a class not to a particular instance.

2. Static variable of method can be used without referencing or creating instance of the class

3. In case there are instances, a static variable of a class will then be shared by all instances of that class. This will therefore result to only one copy.

4. It is not possible to access a non static variable or directly invoke a non static method using a static method.

Currently, static website promotion is being commonly adopted as a search optimization engine. For the past few years, static product based generated a lot of traffic and revenue. Below are some points that search engines and other spiders like in static websites:

1. The content in static websites is stable as compared to dynamic ones which content keeps changing which can cheat the search engines

2. Linking of static pages is stable thus there are no questions of automated generated doorways or pages

Despite static website being highly adopted, updating it is a little difficult. Therefore, you need to have adequate knowledge of the basic HTML and programming. In addition, static website updating is time consuming.

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Using What Does Static Mean in Java

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802.11n is currently being introduced, which provides 600Mbps speed and 300Mtrs range. SmallTalk and Lua both utilize one-based indexing also. It is comparable to Objective-C and Modula-3. It is called CFML and is very similar to HTML in in respect to its syntax.