How to use this tool?

This free online converter lets you convert code from Crystal to Java in a click of a button. To use this converter, take the following steps -

  1. Type or paste your Crystal code in the input box.
  2. Click the convert button.
  3. The resulting Java code from the conversion will be displayed in the output box.

Key differences between Crystal and Java

CharacteristicCrystalJava
SyntaxCrystal has a syntax similar to Ruby, with some differences. It is designed to be easy to read and write.Java has a syntax that is similar to C++, with some differences. It is designed to be simple and familiar to programmers.
ParadigmCrystal supports object-oriented programming and has some functional programming features.Java supports object-oriented programming and has limited support for functional programming.
TypingCrystal is a statically-typed language, which means that variable types are checked at compile-time.Java is a statically-typed language, which means that variable types are checked at compile-time.
PerformanceCrystal is designed to have similar performance to C, with some optimizations.Java is designed to have good performance, but it may not be as fast as languages like C or C++.
Libraries and frameworksCrystal has a smaller ecosystem compared to Java, but it has some libraries and frameworks available.Java has a large ecosystem with a wide range of libraries and frameworks available.
Community and supportCrystal has a smaller community compared to Java, but it has an active and growing community.Java has a large and mature community with extensive support and resources available.
Learning curveCrystal has a relatively small learning curve, especially for developers familiar with Ruby.Java has a moderate learning curve, especially for developers familiar with C++ or C#.