Golang java difference

PHPz
Release: 2023-05-21 17:28:37
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In recent years, Golang and Java have received more and more attention and use from developers. Golang and Java are two different programming languages ​​with their own advantages, disadvantages and applicable scenarios. This article will focus on the comparative analysis of the differences between Golang and Java to help developers choose a more suitable development language according to different needs.

1. Language background

Java is an object-oriented programming language originally developed by Sun Microsystems (now Oracle Corporation) and launched in 1995. The main goal of Java language is to build cross-platform applications. Java language is popular in enterprise-level applications, server-side applications, mobile applications, web applications, game development and big data analysis.

Golang is an open source programming language developed by Google and first appeared in 2009. Its main goal is to provide an easy-to-develop programming language for highly concurrent programs. Golang is widely used in back-end service development, network programming, container technology, etc.

2. Language features

Java is a statically typed, object-oriented, class-based and garbage-collected programming language. All code in Java must be defined in classes and modularized through inheritance, interface implementation, etc. Java has strong type checking, rich class libraries and flexible exception handling mechanisms. Java also supports multi-threaded programming and provides various concurrent programming tools, such as synchronized, Lock, etc.

Golang is a compiled, statically typed, object-oriented (but does not support inheritance) programming language, and also supports functional programming. The bottom layer of Golang is based on C language and has an efficient memory management mechanism and garbage collection mechanism. Golang supports coroutine (goroutine) concurrent programming. Goroutine is a lightweight thread that can greatly reduce the overhead caused by thread switching. At the same time, Golang also provides a rich set of standard libraries and tools to facilitate developers to quickly build applications.

3. Performance and concurrency

High performance and high concurrency are the hallmarks of modern applications and are important factors for developers to choose programming languages.

The execution performance of Java code is relatively low, and the performance is relatively poor in high concurrency and large-scale calculation scenarios. Java provides concurrent programming tools such as thread locks, but the implementation is relatively heavy. Relatively speaking, Golang's execution performance is higher, Goroutines are more friendly to concurrent programming support, concurrent programming is more convenient, and there is no need to think too much about locks.

4. Type system

Java has strong type checking, strict type system, and the code has strict restrictions on types. Java's strict type restrictions are beneficial to code maintainability and code robustness, but will limit some flexibility and require more code to implement certain functions.

Golang’s type system is relatively loose, providing a type inference mechanism and custom data type functions, allowing for more flexible use of variables and other functions.

5. Platform support

Java is widely used in server-side applications, desktop applications, Web applications, mobile applications and other fields. Java has a high degree of compatibility under different platforms and can run on various operating systems and hardware environments.

Golang has multi-platform support and can run on various operating systems and hardware platforms. Golang supports mainstream operating systems such as Linux, Windows, macOS, and can run under ARM, x86 and other architectures.

6. Learning curve

Java syntax is simple and easy to learn. Java's object-oriented programming ideas are relatively rigorous and require a long period of study and practice to master.

The syntax of Golang is similar to C language, relatively simple and suitable for learning. Golang provides a simple type system and rich function library, which can speed up the learning curve.

To sum up, Golang and Java have their own characteristics and advantages. Choosing a programming language that suits you mainly considers the development scenario, skill level, team wishes, etc. Factors such as performance, concurrency, platform support, and learning curve need to be weighed to choose a more suitable development language.

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