Shulou(Shulou.com)06/02 Report--

This article mainly explains "which is better to choose between Java and Python". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn which one is better, Java or Python.

What is it?

Java is a general object-oriented programming language, which is mainly used to develop a variety of applications from mobile to Web to enterprise applications.

Python is an advanced object-oriented programming language, mainly used in Web development, artificial intelligence, machine learning, automation and other data science applications.

Founder

Java was created by James Gosling (Sun Microsystems).

Python was created by Guido van Rossum.

Open source status

Java is free and (mostly) open source, except for commercial use.

Python is free and open source for all scenarios.

Platform dependence

Java according to its WORA ("

Write at once, run write once and run anywhere everywhere

Philosophy, which is platform-independent.

Python depends on the platform.

To compile or interpret.

Java is a compiled language. Java programs are converted to bytecode at compile time, not at run time.

Python is an interpretive language. The Python program is interpreted at run time.

File creation

Java: generates a .class file after compilation.

Python: at run time, create a .pyc file.

Error Typ

There are two types of errors in Java: compile and run time errors.

Python has one type of error: backtracking (or runtime) errors.

Static or dynamic type

Java is a static type. When initializing a variable, you need to specify the type of the variable in the program because type checking is done at compile time.

Python is a dynamic type. Variables do not need to specify a type at initialization time, because type checking is done at run time.

Grammar

Java: each statement needs to end with a semicolon (;), and blocks of code are separated by curly braces ({}).

Python: code blocks are separated by indentation (users can choose the number of spaces to use, but should be consistent throughout the block).

Number of classes

Java: only one public top-level class can exist in a single file in Java.

Any number of classes can exist in a single file in Python:Python.

What's the code?

Java usually writes more lines of code than Python.

Python usually writes fewer lines of code than Java.

Multiple inheritance

Java does not support multiple inheritance (inheritance from two or more base classes).

Python supports multiple inheritance, but it is rarely implemented because of inheritance complexity, hierarchy, dependency, and so on.

Multithreading

Java multithreading can support two or more concurrent threads running simultaneously.

Python uses a global interpreter lock (GIL), which allows only a single thread (one CPU core) to run at a time.

Execution speed

The execution time of Java is usually faster than Python.

The execution time of Python is usually slower than that of Java.

Hello world

Java's:

Public class Hello {public static void main ([String] [3] [] args) {[System] [4] .out.println ("Hello Opensource.com from Java!");}}

Python's:

Print ("Hello Opensource.com from Java!") Run the program

Java vs. Python

To run the java program Hello.java, you need to compile it first, which creates a Hello.class file. Just run the class name java Hello. For Python, just run the file python3 helloworld.py.

At this point, I believe you have a deeper understanding of "Java or Python should choose which is better". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.