On the one hand, Java may deter beginners because of its verbosity and complexity. On the other hand, Java remains one of the most popular programming languages, with very rewarding wages, even for juniors. So, if you’re looking for a reliable and demandable IT career with a high salary, becoming a Java developer may be an excellent choice for beginners. This article unravels the essential questions, facts, concerns, and misconceptions about Java. We aim to help you decide whether Java suits you if you wonder, “Which programming language should I learn first?”. So, keep on reading to make your own informed decision.
The official announcement of Java took place in May 1995 at the SunWorld conference. Over the years, Java has evolved through various versions, with updates and enhancements to the language and its libraries. Regarding other fields, Java finds numerous applications in such vital areas as financial (banking) applications, development tools, etc.
What is Java?All modern apps and websites have two main parts: frontend (what you see and interact with) and backend (the behind-the-scenes stuff). The frontend is like the face of an app: it has images, buttons, and input fields. For example, when you go to a ticket-buying website, you use the frontend to choose your destination, date, and passengers. The backend's job is to handle your request. It finds available tickets for ticket websites, calculates the cost, and sends the info back. It involves working with databases and services. Java is a language used for backend development. It is a versatile, object-oriented, high-level programming language that boasts the “Write Once Run Anywhere” principle — Java code can run on any device or platform without recompilation. “With millions of developers running more than 60 billion Java Virtual Machines worldwide, Java continues to be the development platform of choice for enterprises and developers.” — Oracle (one of the largest vendors in the enterprise IT market). Java boasts of the following fundamental principles:
- object-oriented language;
- architecture independence;
- high productivity;
When Java was developedJava was developed by James Gosling and his team at Sun Microsystems. The development of Java began in the early 1990s, with the initial version of Java being released in 1995. James Gosling, often referred to as the "father of Java", led the project intending to create a programming language for developing software for consumer electronic devices.
What Java is used for?The versatility of Java, along with its platform independence, has contributed to its widespread adoption in various industries and application domains. Java is extensively used in many spheres, including:
- web development
- enterprise applications
- mobile applications
- desktop software
- big data processing
- cloud-based applications
- embedded systems
- scientific applications
- game development, and more
Where Java language is usedPenetrating big data, blockchain, AI, and other booming spheres, Java finds many applications across different technologies.
- Machine learning (ML) and Artificial intelligence (AI). Java has a rich ecosystem of libraries and frameworks specifically designed for machine learning and data science. That's why Java plays an important role in developing ML models and building advanced AI applications.
- Internet of Things (IoT). Java's ability to operate efficiently with minimal processing power has made it ideal for IoT. Java helps create IoT applications that can function effectively with limited computing power and memory.
- Cloud environment. As mentioned, Java's "Write Once, Run Anywhere" philosophy allows applications written in Java to run on different platforms without modification. This is particularly advantageous in the cloud environment, where applications must be flexible and portable across various cloud providers and services.
- Mobile development. Just consider that Java is the official programming language for Android app development. And then consider that there are currently 3.6 billion Android users (49.11%) and 2,597,819 Android apps on the market. Needless to say, Java is in demand in the mobile app industry.