Java Vs Python – Key Differences Between Java And Python And Which Is Best

Java Vs Python - Which is Best

Java vs. Python? Let’s find out the best option for you.

Choosing between various languages can be a tedious task. This blog serves as a one-stop-shop for developers to consider factors while comparing Java vs. Python.

Let’s take a closer look at the differences with some examples to show which is the best between Java vs. Python.

Java and Python have been battling it out for the top spot. Although Python has been gradually improving, Java is still widely used in major organizations. Both languages accomplish their tasks effectively, although there are some minor differences between them.

What is Java?

Java is widely used because of its benefits, one of which is that it “writes once and runs anywhere.” This implies that Java is compatible with a wide range of platforms. Where java does not work, the JVM is utilized.

Most businesses utilize Java as their primary programming language. It’s a multi-purpose, object-oriented, and class-based programming language. Java was invented by James Gosling at Sun Microsystem in 1995, and it was later taken over by Oracle in 2009.

When to use java?

Java is intended to run on any platform. It interprets compiled code using its Java Virtual Machine (JVM). The JVM is both an interpreter and an error detector in one package.

Java was the most extensively used server-side language because of its links to Sun Microsystems. It has so many libraries built on top of it that it’s easy to find code that has already been written for a certain purpose.

What is Python?

Python is the future language; everything will be automated in the future, and Python is the greatest language for automation. Because of its simple syntax and large community, python allows you to build larger programs in less time. Python is a very dynamic language, so you can quickly create a variety of programming software with it.

Python’s syntax encourages readability, which makes it simple to comprehend and lowers the cost of program maintenance. Python also supports modules and packages, which allow developers to reuse code.

When to use Python?

Python’s libraries make coding a breeze. They won’t have to start from scratch too often. If a programmer wants to go into machine learning, there’s a library for that. If they want to build a good chart, they can utilize the library. There is a library for them to use if they want a progress bar in their CLI.

Python is, in general, the Lego of programming languages; locate a box with instructions on how to use it and start building. There isn’t much that has to be begun from the ground up.

Python is ideal for the following tasks because of its readability:

❖        New programmers are needed.

❖        Quickly jotting down thoughts

❖        Collaborating on code


Key Points of Java Vs Python- comparison

  • Popularity

Popularity has always been a tussle between these two languages, since they’ve always been close competitors in the top three spots, along with Javascript. Java was the most popular language before the Javascript revolution. When Javascript was initially released, its creators picked a title that sounded similar to Java to acquire popularity.

Although Java seems to be more popular than Python, with 45 percent of developers preferring it to Python’s 39 percent, the gap is shrinking.

It’s logical to presume that the two languages are equally popular.

  • Performance

The following are the performance differences between Java and Python:

After being compiled into bytecode, both Java and Python are operated on virtual machines. As a result, both languages are cross-platform, meaning they work on any computer with any operating system. Even though they appear to work in the same way, there is a big difference between them.

Static typing is a feature of Java grammar. This syntax makes compilation easier and faster than dynamic-typed syntax. It’s less subject to mistakes and more efficiently targets the platforms for which it’s developed.

Java also has a just-in-time (JIT) compiler. This device transforms byte code into native machine code that enables direct execution of the produced code. This function greatly enhances the speed and efficiency of the language. On the other side, Java applications may be rather long and hard to grasp.

  • Syntax

Java vs Python Syntax

Python is a strongly-typed language, which implies that the interpreter does not have to worry about identifying variable types because they are deduced and checked at runtime. As a consequence, the grammar is simpler and equivalent to English.

In addition, Python does not use brackets and complies with indentation standards, making the code easy for beginners to read and grasp.

In this manner, Java is just the opposite. The syntax is quite strict and requires that you fill in all of the variables and that the program does not run when an error or anomaly exists. For example, the lines have to be contained in a curly bracket to define a block or function with many lines in Java. Python, on the contrary, allows multiple-line chunks for indentation.

Parameter Java Python
Speed Runs slowly compared to Python Relatively faster
Portability A Java programmer can be launched on any computer or mobile device that can run the Java virtual machine. To translate Python code, a Python interpreter must be installed on the target system. Python has lower portability than Java.
Compilation Compiled language Interpreted language
Architecture The Java Virtual Machine is a runtime environment that allows you to execute code and convert bytecode to machine language.


The interpreter for Python converts source code into machine-independent bytecode.
Database Support Stable connectivity Weak connectivity
Salaries The average income for a Java Developer is $103,464 per year.


The average income for a Python Developer is $118,626 per year.
Static or Dynamic Statically typed Dynamically typed
String operations Limited functions Mora than Java
Famous companies using this technology Spotify, Instagram, Netflix Uber, Dropbox, Google

Code example
class A {

public static void main(String args[]){

System.out.println(“Hello World”);



Hello, World in Python:

print “hello world”;




Applications/Uses in many domains:  Python vs Java

  • Web development and design

The development of the backend web employs both languages. So there is no development of python against java web. Backend Web Development is the web development sector that involves the creation of applications on the server-side.

It’s difficult to satisfy all design needs, from security to dependability and efficacy, while building your backend technology from start. This is why programmers invented frameworks, which are software abstractions that allow you to construct your backend technology without having to start from scratch.

  • Artificial Intelligence (AI)

Python became a popular choice for those who want to test machine learning and apply AI’s power to their professions in various ways since it’s an unbelievably basic, yet fully functional, programming language. This is why Python is utilized for many AI work and machine learning work, given its large ecosystems and libraries.

The most prevalent programming languages in the region are TensorFlow, Keras, Sickit-Learn, and PyTorch on Facebook.

Java is also a good alternative for machine learning since it’s easy to debug and use and it is already used for big and business-to-business applications.

Let’s look at some major Python vs java differences:

Technology Java Python
Performance Very fast Slower than Java
Machine learning libraries Weka, Mallet, Deeplearning4j, MOA Tensorflow, Pytorch
Game development engines JMonkeyEngine Cocos, Panda3d
Backend frameworks Spring, Blade Django, Flask
Syntax Complex than Python Easy to learn and use


Who Uses Java and Python?

Java is widely used in web development. Senior programmers are more likely to experience it. It has a decent Natural Language Processing community and enables sequential programming.

Java is used mostly in:

  • Interface products
  • Applications on Mobile
  • Enterprise and embedded systems solutions
  • GUI Apps on desktop.

Python is frequently used by new programmers and junior developers who are transitioning into a data science job. TensorFlow and PyTorch, two popular machine learning packages, are both built-in Python.

Python includes great data processing libraries like Pandas and Dask, as well as outstanding data visualization tools like Matplotlib and Seaborn.

Python is ideal for the following types of applications:

  • Graphic design and image processing games
  • Operating Systems
  • Prototyping
  • Language Development
  • Machine Learning Apps

Java vs python, which is better for the future?

I believe Python should be used for machine learning, but there is a legitimate argument to be made for Java. Of course, the ideal course of action would be to study both. Learning Java will be much easier for you once you have mastered Python. And knowing two of the most popular programming languages may help you get your CV to the top of the pile! In the case of network security, fraud detection, and cyber-attacks, the Java programming language is given higher priority.

Only in these areas does the Python programming language play a smaller role. While only Python language is providing emphasis on natural language processing and sentiment analysis due to its easy and fast characteristic of establishing massively performing algorithms as well as an extensive variety of specialized libraries that it offers.


We may conclude from the foregoing explanation that each language has its unique set of benefits. In contrast, you have complete control over the language you use for your project.

Java is faster and more adaptable than Python because it is simpler and more clear. Java code is static, but Python code is dynamic. Python is wonderful, however, if we claim Python is the language of the future and the growing language, we must acknowledge that Java exists and that most APIs utilize Java.

Both Java and Python are quite powerful in their respective domains. Because both Java and Python are connected to accessibility, developers are the ideal people o choose what best suits their requirements. We at Seagence help software developers and enterprises with production and defect monitoring solutions that uncover all defects with root cause in real-time. You can contact us for any queries and our experts will give you the best guidance.

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