Today, particularly in the aftermath of a terrible pandemic, the internet and cellphones have become a vital part of our life. We rely on our phones for nearly all of our everyday activities. Previously, we shopped at malls, queued at banks, and booked trips through travel agents.
However, we can now accomplish all of this from the comfort of our own homes via our smartphones. All of this is made possible through Java, a high-level programming language. You can learn Java by taking Java tutorial for beginners.
Sun Microsystems launched Java, a cross-platform, object-oriented programming language, in 1995. Java is required nowadays to operate a variety of apps, including games, social networking applications, audio and video programmes, and so forth.
Here we will learn about the evolution of this programming language and how it became so popular.
1. What exactly is Java?
Java is a general-purpose programming language, similar to Python or JavaScript. Due to the language's object-oriented nature, it is comparable to C++ and C#. Additionally, Java is a platform-independent language, which means that Java code may run on any machine that includes a Java Virtual Machine (JVM).
These two words were originally synonymous, and the JVM supported just Java. However, a variety of languages now run on the Java platform, including Scala, Groovy, jRuby, a Ruby implementation named jRuby, and Jython, a Python cousin.
Top 3 features
- Concurrent execution allows you to execute many statements concurrently rather than sequentially.
- A programming language that is both class-based and object-oriented.
- Independent programming language that adheres to the "Write once, run anywhere" philosophy, which means that compiled code runs on any platform that supports Java.
2. Java's history
Java was created in 1991 by James Gosling and Sun Microsystems. While developing the language, he had a single motto: "Write once; run anywhere."
They first called it Oak after the oak tree outside Gosling's office. The name was changed to Green later on and then to Java Coffee, after the Indonesian coffee, before being abbreviated to Java in 1995.
3. Java Fundamentals
Java's fundamental notions are its object-oriented programming (OOPs) capabilities. OOP facilitates the creation and maintenance of software and applications by introducing ideas such as:
Object: An object is a discrete element or thing with a state and behaviour. For instance, a dog can be regarded as an object since it has a distinct colour, breed, and name. It is capable of barking and eating.
Class: A class is a class of related things. It is a blueprint that can be used to generate an unlimited number of things. Classes are used to arrange code in the same way as fruits, vegetables, and pharmaceutical items are classified at a store.
Inheritance: Inheritance is a notion in which one class inherits the characteristics and behaviour of its parent class.
Polymorphism: It is the process of performing the same task in a variety of different ways. It enables programmers to use the same word in a variety of contexts.
Several of the JVM-based languages, such as Scala and Groovy, were developed specifically for use in the Java environment. One may claim that Java played a significant role in the creation of C#.
C# was created after Java and likely received inspiration from it. C# also contributed in the evolution of Java, implying that the two languages are inextricably linked.
4. Java v/s JavaScript
There is no technological connection between Java and JavaScript. JavaScript was originally called LiveScript and was invented in the mid-1990s by Netscape. Because no one was using it, Netscape saw how much interest and expectation Java was generating and basically rebranded Livescript as JavaScript in order to syphon off some of that enthusiasm.
And it was a success - JavaScript grew in popularity. However, the two are technically unrelated; they merely share similar names. The only technical resemblance is that both languages are written in the C programming language. Thus, if you are familiar with Java, picking up JavaScript should be quite straightforward, and vice versa.
5. What frameworks should I use in conjunction with Java?
The wonderful thing about Java is that it is intended to be a fairly general-purpose language, which means that it can be used in a wide variety of situations. It is expressly designed to work on a wide variety of platforms, so you may run it on a:
- Linux system
- Unix box
- Mac
- Windows machine
- Cell phone
6. Is Java a good introduction to coding for beginners?
Java is an excellent introductory programming language for a variety of reasons:
• Java has been around for a long amount of time to be pretty well established. Numerous great books and online resources are available.
• There are more Java programmers than any other type of programmer on the planet, which implies that a large number of individuals are already familiar with Java, and mentors and assistance are plentiful.
• Java's grammar, like the syntax of a huge number of other languages, is taken from C. As a result, if you are already familiar with Java, learning Javascript, C#, or C++ is substantially easier.
• Because Java is an object-oriented programming language, a large number of the core concepts learnt in Java are transferable to other programming languages.
7. A Java developer's role
Java developers use the Java programming language to create dynamic computer programmes and websites. Java developers may be engaged in all phases of application development, from idea and design to testing, production, and any subsequent maintenance. Additional tasks include, but are not limited to the following:
- Phases of developing, implementing, and sustaining Java applications.
- Conducting analysis, programming, testing, and debugging of software.
- Recognize difficulties with applications.
- Software application development, testing, implementation, and maintenance.
- Making recommendations to enhance established Java application processes.
- Creating technical designs for the creation of applications.
8. Java’s Components
The Java programming language is composed of three major components:
JVM: The Java Virtual Machine, or JVM, is a platform-independent Java component that provides an environment in which Java applications may be executed. As a result, the JVM loads the code, verifies it, executes it, and offers a runtime environment.
J*RE:* The Java Runtime Environment creates a platform for running and executing Java files. It is a software bundle that includes the Java Virtual Machine, as well as Java class libraries and a Java class loader.
JDK: The Java Development Kit, or JDK, is a superset of the Java Runtime Environment (JRE). It provides a software development environment for creating Java programmes. The JDK comes with a private JVM and a few more resources necessary to complete the creation of a Java programme.
9. How to learn Java?
Java is amongst the most widely used languages, owing to Java's inherent versatility, dependability, and compatibility. Thus, it is a necessary talent to possess if you wish to pursue a career in programming. Here are some pointers:
- Begin with the fundamentals of Java programming (variables, data types, conditional statements, arrays, loops, functions).
- To grasp the fundamental ideas of Java programming, read a book on the subject.
- Acquaint yourself with sophisticated themes (object-oriented programming, inheritance, abstract class, Java interface, collections).
- Regularly practice coding in order to get experience.
Java workers get experience by working on a variety of different types of projects. As a result, they get an understanding of the demands of various industries and how they interact with developers.
On the other hand, some organisations place a higher premium on people who possess a Java certification since it brings value to the organisation.
10. Salary
In India, the average Java developer income is Rs 443,568 per year, or Rs 175.00 per hour.
Salary ranges from Rs. 278k to around Rs. 924k per annum, based on criteria such as location, experience level, and firm profile.
Conclusion
Despite its age of more than two decades, Java remains a widely popular programming language. According to a stack overflow poll, Java is the third most prevalent technology in the world. Another indicator, the TIOBE index, ranks Java second among the world's most popular programming languages.
Because Java is platform-independent, it is in high demand. This implies that Java programmers may quickly migrate from one computer system to another. Other programming languages lack Java's platform independence. This is why businesses are choosing Java at the moment.
Java developer salaries in India are rather competitive. Each time we use our phones, computers, or apps, we are benefiting from the labour of Java developers. That is why Java engineers are in high demand and earn a high salary. Anyone who wants to pick up a programming language which has a high potential in the future should pick up Java.
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