Software Alternatives, Accelerators & Startups

Crystal (programming language) VS Java

Compare Crystal (programming language) VS Java and see what are their differences

Crystal (programming language) logo Crystal (programming language)

Programming language with Ruby-like syntax that compiles to efficient native code.

Java logo Java

A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
  • Crystal (programming language) Landing page
    Landing page //
    2022-01-26
  • Java Landing page
    Landing page //
    2018-09-30

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

Crystal (programming language) features and specs

  • Performance
    Crystal is designed to have the performance of C, thanks to its compilation to efficient native code. Its static type system and low-level memory management capabilities allow optimized execution.
  • Syntax
    Crystal offers a syntax that is heavily inspired by Ruby, making it intuitive and familiar for Ruby developers. This can significantly reduce the learning curve and improve developer productivity.
  • Type Inference
    Crystal provides powerful type inference, enabling developers to write less boilerplate code while still benefiting from the safety and performance of a statically-typed language.
  • Concurrency
    Crystal supports lightweight concurrency with fibers, which allows developers to write efficient and scalable concurrent programs with a simpler syntax compared to traditional threading models.
  • Community and Ecosystem
    Crystal has an active and growing community. It also boasts a rich ecosystem with libraries and tools, making it easier for developers to find resources and support.

Possible disadvantages of Crystal (programming language)

  • Maturity
    Crystal is still a relatively young language compared to more established languages like Python or Java. This can mean fewer resources, libraries, and tools, as well as potential instability in certain areas.
  • Compilation Time
    Crystal's compilation times can be slower compared to interpreted languages, particularly for larger codebases. This can impact development workflows and iteration speed.
  • Binary Size
    Compiled Crystal programs tend to generate larger binary sizes compared to other compiled languages like Go or Rust. This can be a consideration for resource-constrained environments.
  • Platform Support
    Being less mature, Crystal may have fewer options for platform-specific optimizations and integrations, which could limit its use in certain specialized applications.
  • Tooling
    Although the situation is improving, Crystal's tooling ecosystem is not as mature as those of older languages. This can affect the availability and quality of IDE support, debugging tools, and other development aids.

Java features and specs

  • 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 of Java

  • 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.

Crystal (programming language) videos

No Crystal (programming language) videos yet. You could help us improve this page by suggesting one.

Add video

Java videos

AP Computer Science in 10 Minutes (Java review)

More videos:

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

Category Popularity

0-100% (relative to Crystal (programming language) and Java)
Programming Language
50 50%
50% 50
OOP
43 43%
57% 57
Generic Programming Language
Development
100 100%
0% 0

User comments

Share your experience with using Crystal (programming language) and Java. For example, how are they different and which one is better?
Log in or Post with

Reviews

These are some of the external sources and on-site user reviews we've used to compare Crystal (programming language) and Java

Crystal (programming language) Reviews

We have no reviews of Crystal (programming language) yet.
Be the first one to post

Java Reviews

The 10 Best Programming Languages to Learn Today
If you want to build your career in IoT or big data, Java is arguably the best programming language to learn. Java is cross-platform compatible and offers portability and versatility to almost any type of device, making it ideal for IoT applications. The Apache Hadoop big data processing system is also written in Java.
Source: ict.gov.ge
Alternatives to Nmap: from simple to advanced network scanning
This tool can provide favorite IP address ranges, NetBIOS information and web server detection. More features can be added by installing Java plugins.

Social recommendations and mentions

Based on our record, Crystal (programming language) seems to be a lot more popular than Java. While we know about 114 links to Crystal (programming language), we've tracked only 7 mentions of Java. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Crystal (programming language) mentions (114)

  • Rhombus Language
    Did you ever see Crystal? It's more or less a typed Ruby. I've heard that you can port some code directly. https://crystal-lang.org/. - Source: Hacker News / about 2 months ago
  • Tiny JITs for a Faster FFI
    If you like the Ruby syntax (but want a statically typed language), you might want to take a look at Crystal: https://crystal-lang.org/ > Crystal is statically typed and type errors are caught early by the compiler, eliminating a range of type-related errors at runtime. - Source: Hacker News / 3 months ago
  • Advent of Code #1 (in Gleam)
    I really enjoyed using Crystal last year. It is a very ergonomic language with a featureful standard library. I was tempted to use it again this year, but I figured I should use this opportunity to try something new. After considering several languages including Go, F#, Nim, and Raku, I decided to go with Gleam. - Source: dev.to / 5 months ago
  • Understanding Ruby 3.3 Concurrency: A Comprehensive Guide
    Also check https://crystal-lang.org/ which aims for ruby like syntax/dx but almost native performance. - Source: Hacker News / 6 months ago
  • Crystal 1.11.0 Is Released
    I like the first code example on https://crystal-lang.org
        # A very basic HTTP server.
    - Source: Hacker News / over 1 year ago
View more

Java mentions (7)

  • 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: about 3 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 issue by going here to install Java: https://java.com/en/. Source: over 3 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: over 3 years ago
  • I keep getting this error when I try to install Worldpainter
    I had this problem before just go to https://java.com/en/ and download the java then you will have to install the actual java, then after its installed go to This PC then Windows then Program Files then Java then go to the file name file name that show I think when you downloaded it then go into bin and you will find a java.exe file then click it and World Painter will install and that's who I solved king problem... Source: almost 4 years ago
  • What to do immediately with a brand new build?
    Java, Adobe Reader, Handbrake (great for converting and adjusting videos). Source: almost 4 years ago
View more

What are some alternatives?

When comparing Crystal (programming language) and Java, you can also consider the following products

Nim (programming language) - The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.

Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.

Go Programming Language - Go, also called golang, is a programming language initially developed at Google in 2007 by Robert...

JavaScript - Lightweight, interpreted, object-oriented language with first-class functions

V (programming language) - Simple, fast, safe, compiled language for developing maintainable software.

Rust - A safe, concurrent, practical language