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    Java vs Python: The reality behind the usage and likeability of both!

    If you're a developer or programmer, there must be at least one question that has been popping up in the back of your mind. If the questions seem likeJava vs Python?or Java vs Python which is better?or Java vs JavaScript vs Python or Python vs Java which is easier? Java vs Python difference?Python vs Java performance?or Python vs Java future? Then you’re at the right place as we’re going to answer each of these questions for the budding developer like yourself!

    Java vs Python which is better?Java vs Python differences

    Java is a statically typed and compiled language, whereas Python is a dynamic, typed, an interpreted language. This single difference makes Java faster at runtime and easier to debug, but Python is easier to use or code and easier to read.

    Python has recently gained its popularity due to multiple reasons such as:

    Due to it being communicable;

    Easier to read;

    Has vast libraries so easier for new programmers to grasp and ensures that they don’t have to start from scratch;

    Java is not only old but also is widely used so it also has a lot of libraries and a community for support.

    A deep look into Java vs Python not only tells us a lot about Java but also about Python and then goes on to tell us what both mean and when to use or not use both.

    The difference between Java vs Python lies in the code that is

    • In Syntax;
    • In Classes; etc.

    Java vs Python which is better?

    The question Java vs Python is never-ending and so are other questions related to Java vs Python to answer which we have to use some statistics and data collected –

    As per much research, Python is one of the top ten fastest-growing languages and that Python has been around longer than Java.

    Both Java and Python are full of similarities as both of them have strong cross-platform support and extensive standard libraries, they both almost treat everything as objects, and both languages compile to bytecode, but Python is (usually) compiled at runtime. They are both members of the Algol family, although Python deviates further from C/C++ than Java does.

    Java vs Python difference are as follows:

    Parameters Python Java
    Framework Python has lower lines of Frameworks as compared to Java and some popular ones are DJango and Flask. Java has a huge number of Frameworks and a few of them are Spring, Hibernate, etc.
    Python has always been present in the agile space. Python has gained popularity for multiple reasons like the rise of the DevOps movement. Java enjoys more consistent refactoring support than Python because of its static type system which makes automated refactored more predictable and reliable, and on the other to the prevalence of IDEs in Java development.
    Machine Learning Libraries Pytorch, Tensorflow, etc. MOA, Weka, Deeplearning4j, Mallet, etc.
    Code Python has lesser and shorter lines of coding Java has long lines of coding
    Syntax The syntax is similar to human language so it is easy to remember. The syntax is complicated as it shows an error if you miss semi-colon or curly braces.
    Key Features Rapid deployment and dynamic typing as there is a lot lesser line of coding involved. Self memorymanagement, Robust, Platform independence.
    Speed and Databases Python is slowersince it uses an interpreter and also determines the data type at run time. Python’s database access layers are a lot weaker than Java’s JDBC which is why it is rarely used in enterprises. Java is faster in speed as compared to Python. JDBC which is popularly known as Java Database Connectivity is most widely and popularly used to connect with databases.

    Java vs JavaScript vs Python

    When it comes to Java vs JavaScript – Java is an OOP (Object Oriented Programming Language) which was developed by Sun Microsystems which later was acquired by Oracle. Programs or applications developed in Java will execute in a JVM (Java virtual machine) by which we can run the same program on multiple platforms and systems/devices etc. Whereas JavaScript is an object-oriented scripting language that allows the creation of dynamic HTML pages with interactive effects within a webpage. JavaScript was available in the browser until Google chrome released its JavaScript engine as "node.js". Few major differences between Java and JavaScript are:

    OOPs – Java is an objected – oriented programming language that effectively uses objects to perform multiple actions based on relations between objects. JavaScript is an object-oriented language too which uses objects similar to Java.

    Running Platform – Java applications and programs are run on JVM (Java Virtual Machine) which requires JRE and JRD to be installed on the said system whereas JavaScript can run on a web browser without any requirement of initial set up.

    Java has a strongly typed language whereas JavaScript is a loosely typed language i.e. we need to declare variables using set objects before using them whereas in JavaScript we can flexibly use a variable.

    Both Java and JavaScript languages are open source inherently as we can edit or modify the actual code and use it. Java achieves concurrency using a thread-based approach whereas JavaScript uses an event-based mechanism.

    Java is a compiled and interpreted programming language and executed on JVM which requires JDK and JRE whereas JavaScript is interpreted which is executed on a browser and it is plain text.

    Java has statically typed language whereas JavaScript is dynamically typed language as variables declared at compile time with the data type and JavaScript can accept different kinds of data types.

    In Java, we have the support of constructor whereas in JavaScript constructor is a function and no rules for constructors in JavaScript like in Java.

    Java is platform-independent with bytecode whereas JavaScript code is written is based on browser compatibility as some code might work on specific versions of browsers and doesn’t work on different versions of the same browser.

    Java is a class-based programming language whereas JavaScript is prototype-based although it has object-oriented programming abilities.

    Java has an implicit class scope whereas JavaScript has the implicit global scope.

    Java has support for different numeric data types whereas JavaScript mostly deals with floating-point data types.

    Java ends non-block statements with a semicolon whereas JavaScript uses semicolons at the end of certain lines.

    JavaScript has support for closures where we can pass a function as an argument to another function whereas Java doesn’t have this support but can be achieved using an anonymous class.

    Java has a switch structure that accepts only constants whereas JavaScript also has a switch structure that accepts any values.

    Java has the support of annotations on classes whereas JavaScript has decorators on the same declarations with different semantics.

    Java has the support of Enum data type by which we can declare a set of constants whereas JavaScript doesn't have set a constant declarations.

    JavaScript vs Python

    JavaScript can be used to run on the frontend whereas python is on server-side programming or backend.

    Python is strongly typed – no implicit conversion between types whereas JavaScript is weakly typed.

    Python has procedural programming whereas Java-Script does not have.

    Python is a better-designed language that makes it easy to maintain whereas JavaScript is poor.

    Python is not good for mobile development whereas Java-Script is good.

    Python is slow to run compared to JavaScript.

    Python provides a huge standard library whereas JavaScript has a limited standard library.

    Python heavily relies on assignments with no difference between variables and assignments whereas JavaScript doesn't relay.

    Python has many libraries for scientific computing, data analytics, and machine learning whereas JavaScript does not.

    < br />Python has support for many numeral data types like int, float, fixed-point decimal whereas Java-Script mainly works on floating-point variables.

    Python has an inbuilt REPL whereas JavaScript does not have.

    JavaScript runs on both browser and server whereas python is mostly used for server-side programming.

    Python is easy to get started compared to JavaScript.

    Python is easy to find new jobs compared to JavaScript this year.

    Python object-based is nearly equal to JavaScript and Python supports a programming style that uses simple functions and variables.

    Java-Script has; a statement terminator whereas python has a newline.

    Python vs Java performance?

    When it comes to Java vs Python part, performance indeed is a yardstick to look for. Java and Python are both some of the most robust popular and robust programming languages. Java is nonetheless and faster and more efficient because Python is a compiled language though as an interpreted language whilePython has simpler, more concise syntax than Java then to it can perform the same function as Java in fewer lines of code.

    Speed and efficiency differences in Java vs Python –

    Python is an interpreted language that slows down Python programs during runtime. To determine the variable type which occurs during runtime increases the workload of the interpreter. Also, remembering the object type of objects retrieved from container objects contributes to memory usage which further slows programming in Python down. Java programs are compiled directly. Java Virtual Machine (JVM) calls the compiled code directly. Since the code is not interpreted, compiling does not require processor time and memory usage. Theoretically, this can make a Java program as fast as a native application. Java’s efficiency largely comes from its Just-In-Time (JIT) compiler and support for concurrency. The JIT compiler is a part of the Java Runtime Environment. It improves the performance of Java programs by compiling bytecodes into native machine code "just in time" to run.

    Java vs Python Fixing Bugs - In terms of Python, any or multiple bugs introduced by the programmer will not be found until that line of code is triggered or run. This can risk operational breakdowns and extend turnaround time thus slowing down the program developed in Python. While Python leaves objects vulnerable and open to mutation, in Java object mutations are impossible. This leads to secure software development.

    Java vs Python is the choice of the developer as to which one he or she would use, but Python is mostly used by new developers as it is easy to understand and develop. Thus, Java vs Python is also dependent on the developer’s acquired knowledge and skills of either of the programming languages.

    About the Author

    Kamal Rastogi is a serial IT entrepreneur with 25 yrs plus experience. Currently his focus area is Data Science business, ERP Consulting, IT Staffing and Experttal.com (Fastest growing US based platform to hire verified / Risk Compliant Expert IT resources from talent rich countries like India, Romania, Philippines etc...directly). His firms service clients like KPMG, Deloitte, EnY, Samsung, Wipro, NCR Corporation etc in India and USA.

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