- What is Java?
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What is Java?
Java is a cross-platform, class-based, general-purpose programming language used to build different and complex applications like web applications, mobile applications, big data technologies, etc. It incorporates object-oriented programming concepts like inheritance, encapsulation, abstraction, etc., to make the language secure and reliable.
It is a computing platform that consolidates a compiler, execution engine, computer software, set of libraries, and so much more for developing, and running Java Applications and programs.
Another important part of Java is JVM i.e., the Java Virtual Machine. JVM is a machine that allows Java to convert byte code into any machine code. Now, byte code is an intermediate code translated from the source code. This code, unlike the machine code, runs on the JVM to be interpreted by different machines Java applications run on like Linux, macOS, Windows, etc.
JVM ensures Java supports the feature of Write once Run Anywhere by giving adaptability for cross-platforms.
All these different platforms have distinct characteristics and features that help programmers build desktop and mobile web applications. Some platforms are suitable for developing APIs for desktop applications and some work well for Graphic User-interface Development, one might be beneficial for its high performance.
The pivotal aim of the applications is to assist programmers in an easy, fast, and secure development and execution process.
Features of Java
- Easy and Simple to Understand: Java is known for its simplicity as it comes with code that has a familiar base from languages like C and C++ minus the complexities of those languages. Complexities like Storage classes, operator overloading, etc.
- Platform-Independent: Java is a platform-independent programming language. This means that Java code can run on any machine, any platform, and any operating system. It is possible because of Java Virtual Machine and Byte Code. Byte code is an intermediate code, a converted code from the source code which runs on JVM. JVM is software that allows executing ByteCode on different platforms and Operating Systems.
- Object-Oriented: Java programming language supports all the object-oriented programming features and concepts like Encapsulation, Abstraction, Inheritance, etc. These OOP concepts provide many advantages to the language like security, preventing data redundancy, easy troubleshooting, and many more.
- Compiled and Interpreted: Many programming languages have either the advantage of compiling or interpreting the code.
Java, on the other hand, is a combination of both advantages. With Java, you can compile the source code into ByteCode and interpret it on JVM to make it executable on any machine or platform.
- Secure and Reliable: Java as a programming language includes many tools, features, etc., that make it a secure and reliable language for programmers and developers. It provides secure communication, public key infrastructure, authentication, cryptography and so much more for providing a secure and reliable framework for the developers.
Read More About the Features of Java
- Interactive Forms
- Auto Updates
- Autocomplete text suggestions
- Animation graphics
and so much more.
- Adding interactive, functional elements to web pages
- Developing web-based games
- Creating Mobile Applications
- Back-end or server-side development
|Java is an Object-Oriented language developed by James Gosling from Sun Microsystems
|Java is a standalone programming language that is executed on JVM (Java Virtual Machine) by converting the source code into the byte code.
|Java is a class-based object oriented programming language.
|Java as a class-based language creates objects after defining a class.
|Java supports static typing which requires variable and type declaration before the compilation and execution.
(the function of handling different instructions at the same time)
|Java supports and ensures concurrency using multi-threading that makes the program faster and efficient.
|Compilation and Interpretation
|Java is compiled as well as interpreted. It is compiled into a byte code and interpreted on a JVM.
|Source Code Visibility
|In Java, the source code is hidden, in the form of byte code that cannot be read by unauthorized or third party users.
|To develop and run a Java Program, you need the entire Java Development Kit (JDK).
|Data types in Java need to be declared.
|Java is created keeping in mind the primary motive of keeping the source code secured. And it provides robust features to support that.
|Java supports the file extension “.Java”
|Java can be used for several types of application development including:
• Mobile application development
• Cloud-based Applications
• Big Data Technologies
• Web-Based Applications
|• Extensive Libraries
• Simple and Easy to Learn
• Powerful frameworks
• Great for front-end development
|Netflix, Google, Airbnb, etc.
|Paypal, Uber, Microsoft, etc.
Advantages of Java
- WORA (Write Once Run Anywhere) – Java’ portability features of compilation and interpretation make it compatible to write once and can run anywhere. You just need to write the source code that will be converted to a Byte code on JVM for interpretation on any machine or OS.
- Robust and Secure – Java’s features make it one of the secured platforms for developing and running applications. For example, it does not support explicit pointers (a function of providing memory addresses to different values) or robust security measures while defining classes, etc., to minimize unauthorized access and cyberattacks.
- Automatic Garbage Collection – Java, with the feature of automated garbage collection, does not let unused, idle objects take up unnecessary space. It cleans up automatically objects that are nowhere to be used in programs.
- Multi-Threading – Java ensures multi-threading. It means that Java supports the performance of simultaneous tasks. Thread here is a unit of a process and Java can run multiple threads at the same time.
Disadvantages of Java
- Performance – Java is not as rapid as its native or peers languages like C++ and C. It significantly gives a slow performance because of the additional tasks of compilation and interpretation. Java also has high memory consumption that put a heavy load on the CPU and slows down the efficiency of the language.
- Memory Management – Auto Garbage Collection is both a benefit and drawback for Java. Yes, it surely automatically collects unnecessary and unused objects. However, it puts a heavy load on the processor and in addition, put a hold on the working of all the other threads as well. It increases the time to complete tasks.
- Backup – Another significant drawback of Java is its lack of ability to back up data. There are robust features for storing and collecting data but not as such a strong facility that backs up data.
- Look and Feel – Java provides several frameworks and GUI builders for developing the user interface for applications and web pages. But, they are not suitable for building high-scaled, complex user interfaces. Frameworks like JavaFX, Swing, etc., do not provide much complexity and functionality for front-side development.
The question of the article is here. After a thorough reading of the article, it is evident to say that no one language is superior to another.
Java, on the other hand, is a standalone language that is fast, secure, and reliable for server-side development. Programmers use it for its extensive and rich libraries, efficiency and robust security features for creating mobile applications, desktop applications, gaming and web-based applications, and so much more.
So, in the end, it is up to the programmer or developer to decide which is best for their project. If you are wondering which language you should choose, it depends on what kind of project you are working on, what is required, and what your project demands will be.
Java is used for server-side or backend development for desktop, mobile, and web-based, gaming applications.
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