Shulou(Shulou.com)06/03 Report--

This article mainly introduces the example analysis of the comparison of Python and Java grammar, which has a certain reference value, and interested friends can refer to it. I hope you will gain a lot after reading this article.

Python is a widely used interpretive, high-level, general-purpose programming language created by Guido Van Rosum. The first edition was released in 1991. You can think of it as an improved LISP that incorporates the advantages of some other programming languages, such as object orientation. Python's design philosophy emphasizes the readability of code and concise syntax (especially using space indentation to divide code blocks rather than using curly braces or keywords). Allows developers to express ideas in less code than C++ or Java,Python. Whether it is small or large programs, the language tries to make the structure of the program clear.

Java is a widely used computer programming language, which has the characteristics of cross-platform, object-oriented and generic programming. It is widely used in enterprise Web application development and mobile application development. The style of the Java programming language is very similar to the C++ language. Inherit the core of the object-oriented technology of C++ language, abandon the error-prone pointers and replace them with references; remove operator overloading and multiple inheritance features in C++ and replace them with interfaces; add garbage collector function. Generic programming, type-safe enumerations, indefinite length parameters, and automatic loading / unboxing features were introduced in Java SE version 1.5. Sun Microsystem's interpretation of the Java language is: "Java programming language is a simple, object-oriented, distributed, interpretive, robust, system-independent, portable, high-performance, multithreaded and dynamic language."

So what's the grammatical difference between Python and Java? let's take a look at it with a few vivid examples.

Goal 1: output hello,world

Python version

Print ("hello,world")

Java version

Public class HelloWorld {/ / the HelloWorld here needs to be the same as the file name public static void main (String [] args) {System.out.println ("hello,world");}}

Goal 2: get keyboard input and output

Python version

Name = input ("Please enter your name:") print (name)

Java version

Import java.util.Scanner;public class inputstr {public static void main (String [] args) {System.out.println ("Please enter your name:"); String name = new Scanner (System.in). Next (); System.out.println (name);}}

Goal 3: output a random number from 1 to 10

Python version

Import randomprint (random.randint (1jre 10))

Java version

Import java.util.Random;public class prandom {public static void main (String [] args) {System.out.println (new Random () .nextInt (10) + 1)}}

Goal 4: specify a list or array, [51, 22, 93, 17, 77, 31, 44, 55, 20], please sort it quickly

Python version

Def quicksort (lis): if len (lis)

= mid: right.append (li) else: left.append (li) return quicksort (left) + [mid] + quicksort (right) if _ _ name__ = "_ _ main__": li = [51, 22, 93, 17, 77, 31, 44, 55, 20] newl = quicksort (li) print (newl)

Java version

Import java.util.ArrayList;public class quickpractise {public static void main (String [] args) {int list [] = {51, 22, 93, 17, 77, 31, 44, 55, 20}; ArrayList lis = new ArrayList (); for (int iTuno)

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