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What Is Java Programming ???

 What Is Java Programming ???

java Programming

Hello , welcome to CodingTalks ! Today we Starting Java Programming.In next few weeks you’ll learn all about the Java language and how to use it to create programs In Java.

The programms that run inside Web pages called “applets”

Programs that can run on their own called “applications”.

 

 

What Is Java ?

Java is another programming language with which you write programs that run on the Internet. In this respect, Java is closer to popular programming languages such as C, C++, Visual Basic, or Pascal, than it is to a page description language such as HTML, or a very simple scripting language such as JavaScript.

More specifically,

Java is an object-oriented programming language developed by Sun Microsystems, a company best known for its high-end UNIX workstations. Modeled after C++, the Java language was designed to be small, simple, and portable across platforms and operating systems, both at the source and at the binary level, which means that Java programs (applets and applications) can run on any machine that has the Java virtual machine installed (you’ll learn more about this later).

Java is usually mentioned in the context of the World Wide Web, where browsers such as Netscape’s Navigator and Microsoft’s Internet Explorer claim to be “Java enabled.” Java enabled means that the browser in question can download and play Java programs, called applets, on the reader’s system. Applets appear in a Web page much the same way as images do, but unlike images, applets are dynamic and interactive. Applets can be used to create animation, figures, forms that immediately respond to input from the reader, games, or other interactive effects on the same Web pages among the text and graphics.

To create an applet, you write it in the Java language, compile it using a Java compiler, and refer to that applet in your HTML Web pages. You put the resulting HTML and Java files on a Web site in the same way that you make ordinary HTML and image files available. Then, when someone using a Java-enabled browser views your page with the embedded applet, that browser downloads the applet to the local system and executes it, allowing your reader to view and interact with your applet in all its glory.

While applets are probably the most popular use of Java, the important thing to understand about Java is that you can do so much more with it than create and use applets. Java was written as a full-fledged general-purpose programming language in which you can accomplish the same sorts of tasks and solve the same sorts of problems that you can in other programming languages, such as C or C++.

Java Features ?

  • Java Is Platform Independent

Platform independence-that is, the ability of a program to move easily from one computer system to another-is one of the most significant advantages that Java has over other programming languages, particularly if your software needs to run on many different platforms. Java is platform independent at both the source and the binary level.

Platform independence in Java doesn’t stop at the source level, however. Java compiled binary files are also platform independent and can run on multiple platforms (if they have a Java virtual machine available) without the need to recompile the source.When you write a program in Java, you don’t need to rely on features of that particular operating system to accomplish basic tasks. Platform independence at the source level means that you can move Java source files from system to system and have them compile and run cleanly on any system.

  • Java Is Object Oriented

To some, the object-oriented programming (OOP) technique is merely a way of organizing programs, and it can be accomplished using any language. Working with a real object-oriented language and programming environment, however, enables you to take full advantage of object-oriented methodology and its capabilities for creating flexible, modular programs and reusing code.

Many of Java’s object-oriented concepts are inherited from C++, the language on which it is based, but it borrows many concepts from other object-oriented languages as well. Like most object-oriented programming languages, Java includes a set of class libraries that provide basic data types, system input and output capabilities, and other utility functions. These basic libraries are part of the standard Java environment, which also includes simple libraries, form networking, common Internet protocols, and user interface toolkit functions. Because these class libraries are written in Java, they are portable across platforms as all Java applications are.

  • Java Is Easy to Learn

its portability and object orientation, one of Java’s initial design goals was to be small and simple and therefore easier to write, easier to compile, easier to debug and easy to learn. Keeping the language small also makes it more robust because there are fewer chances for programmers to make mistakes that are difficult to fix. Despite its size and simple design. Java still has a great deal of power and flexibility.Java is modeled after C and C++, and much of the syntax and object-oriented structure is borrowed from the latter. If you are familiar with C++, learning Java will be particularly easy for you because you have most of the foundation already.Java looks similar to C and C++, most of the more complex parts of those languages have been excluded from Java, making the language simpler without sacrificing much of its power.

There are no pointers in Java, nor is there pointer arithmetic. Strings and arrays are real objects in Java. Memory management is automatic.Programmers who have worked in other languages, they make the Java language far easier to learn.

 



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