Java is a powerful general-purpose programming language that can be used to create everything from desktop and mobile apps to big data processing and robot programming.
Java programming has grown in popularity due to its platform independence, object-oriented nature, and ease of use.
What is Java?
Java is a programming language created in the mid-’90s. Java is a powerful general-purpose programming language that can be used to create everything from desktop and mobile apps to big data processing and robot programming. Java programming has grown in popularity due to its platform independence, object-oriented nature, and ease of use.
According to the well-known PYPL index from Github and the TIOBE index, Java is today one of the most popular programming languages and one of the most common languages to start with when learning programming.
Why learn Java?
Java Developers are in-demand tech professionals today. Regardless if Java is a hobby, passion, or way to level up your career, here are some reasons to learn Java programming
There are several reasons why you should learn Java, including:
01. Java is a widely used and popular programming language
From web to mobile to desktop, Java is found in almost all operating systems. Not only is Java universally used in tech, but it is scalable and portable, as Java must be run through a cross-platform compatible so-called Java Virtual Machine (JVM).
In addition, several popular indexes measuring the popularity of programming languages, Java is constantly ranked in the top. For example, according to Go Java, there are over 12 millions software developers programming in Java, while Oracle estimates that there are more than 9 million Java developers worldwide.
02. Java is easy to learn
Java is considered to be beginner-friendly and simple to use high-level programming language. A high-level language (HLL) programming language are called high-level because they are closer to human languages and further from machine languages, making them easier to read, write, and maintain. The so-called compiler handles the translation into machine language.
03. Easy to get started with Java
It’s easy to get started coding in Java and everything you need is available for free online. In addition, Java is platform-independent, which means that you can run Java on all operating systems such as Mac, Windows or Linux.
04. High Salary for Java Developers
According to Glassdoor, in 2022 the estimated total pay for a Java Developer is $109,387 per year in the United States area, with an average salary of $92,656 per year. Indeed has a similar estimation, with the average salary for a java developer is $114,919 per year in the United States and $6,500 cash bonus per year.
If we summarise the above, four reasons you should consider learning Java
Java vs Python: Comparison for Data Science
According to Popularity of Programming Languages (PYPL), Python and Java are two of the most popular programming languages.
When it comes to building programs for data analysis and processing, many data scientists are favoring Python and R. However, frameworks like as Apache Spark, Kafka, Hadoop, Hive, Cassandra, and Flink, all operate on the JVM (Java Virtual Machine) and are critical in the Big Data field.
Let’s compare some aspects for Java vs Python in Data Science
- Frameworks: Both Java and Python provide a good collection of built-in libraries which can be used for data analytics, data science, and machine learning. Python comes with a huge number of inbuilt libraries for machine learning and artificial intelligence. While many of the popular Big Data frameworks have strong foundations in Java, such as Apache Spark and Cassandra
- Performance: Java is faster than Python. Python is an interpreted language, meaning that it reads the code line by line. As a result, performance in terms of speed is often slower. Another speed advantage Java has is that Java is capable of handling multiple computations simultaneously, which also adds to its speed
- Easy to Learn: While both Java and Python are considered beginner friendly, Python is considered to be the easier one to learn. New programmers can start writing code quicker in Python
To conclude, both of these programming languages have their benefits in terms of Data Science. I would say that it comes down selecting a programming language based on your experiences and/or the organisation’s requirements. Due to its ease of use and large library for machine learning and artificial intelligence, Python has gained more popularity in the field of Data Science
Most popular Java Data Science Libraries
Similar to Python, Java has a range of libraries for working with Data Science
Java Statistical Analysis Tool (JSAT)
Learn Java: Best Free Resources
There are plenty of free resources available online to learn Java
Check out the course: Learn Java at Codecademy
Here is the link the Java Tutorial at Tutorialspoint
3. Youtube: Java Tutorial for Beginners
Here is the link to the video lesson
Here is the link to CodingBat
Check out the Java section at Sololearn
Check out Java Programming at Programiz
Check out Code Knowledge
Learn Java: Best Paid Resources
AAlthough it’s not free, Udemy often has flash sales where you can get the course for a lot cheaper. When completed, the course provides a certificate to indicate that you have completed the Java course, that you can add to your resume or Linkedin profile
Here is the link if you want to check out the course The Complete Java Masterclass at Udemy
Read more about the specialisation here: Object Oriented Programming in Java Specialisation
Tips if you want to learn Java
Some general advice:
- Free resources online: Start with free resources online, they are great. In general, the online resources to learn computer programming are endless, and there’s always tutorial, or blog explanation, that can help you. Then as you progress you can look at the paid resources.
- Take action: Your time and energy should be to start – to take action – not planning and spending too much time decide which resource to use. They majority are good, just pick the one that you think seems nice and you can’t go wrong, and if that would happen, just switch
- Learn by doing. Programming is about solving problems, and the code is your toolbox to solve a problem. To learn how to use that toolbox you must practice, practice and practice, not only watching others do it. So don’t just watch videos and do quizzes, the sooner you start playing with the code, the faster you will learn the given concepts. For example, I had my own project that I used when I learned Java. It was a simple (very simple) game that in Java, it was a great way for me to learn java programming
- Start with fundamentals: Programming fundamentals always need to come first. The better you understand them, the easier it is to learn the more advanced concepts
FAQ: Java programming
Why learn Java?
Some of the reason why you should learn Java include:
– Java is a widely used and popular programming language
– Java is easy to learn
– It’s easy to get started with Java
– Java Developers are in-demand tech professionals today.
– High Salary for Java Developers
Why is Java so popular?
Java is a powerful general-purpose programming language that can be used to create everything from desktop and mobile apps to big data processing and robot programming. Java programming has grown in popularity due to its platform independence, object-oriented nature, and ease of use. Java is one of the most common programming languages that you start with when learning programming.
Where can I learn Java?
Best paid resources to learn Java
– Udemy: The Complete Java Masterclass
– Coursera: Object Oriented Programming in Java Specialisation” from Duke University