Software Alternatives & Startups

Java VS Swift

Compare Java VS Swift and see what are their differences

Java

A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible

Rating
0 reviews
Swift

Swift is a general-purpose, multi-paradigm, compiled programming language developed by Apple Inc. for iOS, macOS, watchOS, tvOS, Linux and z/OS.

Rating
0 reviews

Which is more popular?

Based on our record, Swift should be more popular than Java. It has been mentioned 30 times since March 2021.

social mentions
7 vs 30
Programming Language popularity
57% vs 43%
alternatives listed
99 vs 95

Base details

Website, pricing, platforms and company facts side by side.

Java
Swift
Website java.com developer.apple.com
Listed in

About Java and Swift

In their own words, as submitted to SaaSHub.

Java
Swift

We recommend LibHunt Java for discovery and comparisons of trending Java projects.

Read more about Java

We recommend LibHunt Swift for discovery and comparisons of trending Swift projects.

Read more about Swift

Features and specs

What each product offers, as listed by its team.

Java 5 features
Swift 7 features
  • Platform Independence
    Java is known for its portability across multiple platforms via the Java Virtual Machine (JVM). This means you can write code once and run it anywhere.
  • Large Standard Library
    Java boasts a comprehensive standard library, which facilitates development by providing pre-built solutions for a wide array of programming tasks.
  • Robust and Secure
    Java emphasizes strong memory management and has built-in security features, making it a reliable choice for applications requiring high levels of security.
  • Community Support
    With a vast and active community, ample resources are available for learning and troubleshooting. Numerous libraries and frameworks are available due to its long-standing presence.
  • Performance
    Modern Java versions offer performance that is generally very good for many applications, particularly server-side applications where the Just-In-Time (JIT) compiler can significantly optimize runtime performance.

Possible disadvantages

  • Verbosity
    Java's syntax can be verbose compared to newer languages, requiring more lines of code to accomplish the same tasks, which may reduce readability.
  • Memory Consumption
    Java applications can be memory-intensive due to their reliance on the JVM, which can be a downside for resource-constrained environments.
  • Performance Overhead
    Despite its generally good performance, Java's reliance on the JVM introduces some overhead compared to languages that compile to native machine code, such as C++.
  • No Low-Level Programming
    Java abstracts away from the hardware, making it less suitable for low-level programming tasks that require direct hardware manipulation, such as embedded systems programming.
  • Slow Startup Time
    Java applications can have slower startup times due to the overhead of JVM initialization, which can be a drawback for desktop applications or command-line tools that are frequently started and stopped.
  • Performance
    Swift is designed to be high-performance, often running faster than Objective-C due to its modern language constructs and optimized LLVM compiler.
  • Safety
    Swift includes features like optionals, type inference, and safe memory management to reduce common programming errors and crashes.
  • Readability
    Swift's syntax is clean and less cluttered, making it easier to read and maintain.
  • Interoperability
    Swift is fully interoperable with Objective-C, allowing for easy integration with existing iOS and macOS projects.
  • Modern language features
    Swift includes modern programming concepts such as closures, generics, and tuples which can help developers write expressive and efficient code.
  • Memory management
    Swift uses Automatic Reference Counting (ARC), which helps in efficient memory management without requiring manual intervention from the developer.
  • Active community and support
    Swift has a large, active community and strong support from Apple, ensuring continuous evolution and community-driven improvements.

Possible disadvantages

  • Newness
    Being relatively new compared to languages like Objective-C, Swift is still evolving, which might lead to occasional stability issues or breaking changes with new updates.
  • Limited legacy support
    Swift does not work with versions of iOS and macOS older than iOS 7 and OS X 10.9, limiting its use in maintaining really old applications.
  • Learning curve
    For developers accustomed to Objective-C or other languages, there is a learning curve associated with familiarizing themselves with Swift’s new syntax and features.
  • Smaller pool of third-party libraries
    Although growing, the ecosystem of third-party libraries for Swift is still smaller compared to more mature languages, potentially limiting immediate availability of tools.
  • Binary compatibility
    Binary compatibility issues can arise, especially when working with a mixed codebase of Swift and Objective-C, requiring extra caution during implementation.
  • Tooling maturity
    Some of the development tools and environments, while robust, can still be less mature compared to the well-established Objective-C tooling.

Analysis

An editorial look at what each product does well and who it suits.

Java
Swift

Overall verdict

  • Java remains a strong and relevant choice for software development, particularly in enterprise environments. It is a mature language with ongoing support and updates, ensuring it remains viable and secure for modern applications.

Why this product is good

  • Java is a versatile and powerful programming language that has been used extensively for developing a wide range of applications. It is platform-independent due to its 'write once, run anywhere' capability, thanks to the Java Virtual Machine (JVM). Java is known for its robustness, extensive libraries, and strong community support, making it a reliable choice for developers.

Recommended for

  • Enterprise-level applications
  • Web applications
  • Android app development
  • Scientific and research projects
  • Big data technologies

Overall verdict

  • Overall, Swift is a robust, efficient, and modern programming language suitable for developing applications in Apple's ecosystem, particularly iOS and macOS apps.

Why this product is good

  • Swift is developed by Apple for iOS and macOS app development, making it a first-class language for creating apps in Apple's ecosystem.
  • The language is designed to be safe, with strong type-checking and memory management features, reducing the likelihood of common programming errors.
  • Swift is known for its performance, as it is compiled to native code, allowing apps to run efficiently.
  • It offers modern language features such as optionals, generics, and powerful protocol extensions, making it expressive and flexible.
  • Swift has strong community support and extensive documentation available on developer.apple.com, making it easier to learn and develop with.

Recommended for

  • Developers looking to build iOS, macOS, watchOS, and tvOS applications.
  • Programmers interested in learning a modern, type-safe programming language with support for functional and object-oriented programming.
  • Individuals and teams focused on creating performance-optimized applications in the Apple ecosystem.

Videos

Walkthroughs and reviews on video.

Java 3 videos + Add
Swift 3 videos + Add

AP Computer Science in 10 Minutes (Java review)

More videos

  • - Java AP CS Exam Review
  • - Top Five Basic Programming Concepts of Object-Oriented Java - Six Minute Refresher!

Honest Review of Swift and First Year Pay

More videos

  • - Maruti Suzuki Swift - Hindi Review - Autoportal
  • - 2018 Maruti Swift Review - Still Fun To Drive | Faisal Khan

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Java
Swift
57% 57%
43% 43%
76% 76%
OOP
24% 24%
0% 0%
100% 100%

User comments

Share your experience with using Java and Swift. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Java no reviews yet
Swift no reviews yet
  • Top 10 Rust Alternatives
    blog.back4app.com · Apr 2022

    Swift also stands to be among the general-purpose computer languages used to generate codes. The basics of this language are based on a safer approach for the users.

  • The 10 Best Programming Languages to Learn Today
    ict.gov.ge · Jan 2020

    With the growing popularity of Apple operating systems and applications, having Swift programming skills under your belt is a wise investment. Swift shares some similar characteristics with programming languages Ruby...

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Java 7 mentions
Swift 30 mentions
  • Can someone help with port forwarding?
    You can use UPnP PortMapper. Source code/Download. All you need is Java and that's it. Hope this helps. Source: over 4 years ago
  • PolyGlot 3.5 Release
    I would definitely suggest installing Java for this one, and the error should have asked you to do so. I'll have to look into why that was not popping properly for you and address it in a bug fix. In the mean time, you can address the... Source: almost 5 years ago
  • i need help pls
    Https://java.com/en/ Is this the java you're using to install optifine. When I first got optifine I thought java meant Minecraft and not java. Source: almost 5 years ago

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  • Migrating Away from Rust
    It surely is, according to Apple's own documentation. > Swift is a successor to the C, C++, and Objective-C languages. It includes low-level primitives such as types, flow control, and operators. It also provides object-oriented features... - Source: Hacker News / over 1 year ago
  • Apple's Darwin OS and XNU Kernel Deep Dive
    Yes, Apple themselves, apparently folks wanting Apple to use Rust don't read Apple's documentation or watch talks done by Apple compiler developers. > Swift was designed from the outset to be safer than C-based languages, and eliminates... - Source: Hacker News / over 1 year ago
  • The Top Programming Languages to Learn in 2024
    Swift is Apple's programming language for iOS, macOS, watchOS, and tvOS app development. It's known for its performance and safety, making it a great choice for developing apps in the Apple ecosystem. Explore Swift here. - Source: dev.to / over 2 years ago

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Alternatives to Java and Swift

When comparing Java and Swift, you can also consider the following products.