Three simple steps
How to use this tool?
This free online converter translates Fortran source code into Java in three simple steps.
- Step 1
Add your Fortran code
Type, paste, or upload the Fortran code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Java.
- Step 3
Review the result
Review, copy, or download the resulting Java code from the output editor.
See it in action
Examples of Fortran to Java conversion
These examples show Fortran source code and the corresponding Java translation. Generated results can vary as AI models are updated.
Example 1
Is String Palindrome
Program that checks if a string is a palindrome or not.
Fortran code
Java code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
Fortran code
Java code
Language comparison
Key differences between Fortran and Java
| Characteristic | Fortran | Java |
|---|---|---|
| Syntax | Fortran uses a fixed-format syntax, which can be difficult to read and write for some programmers. However, it has a simple and concise syntax that makes it easy to learn and use. | Java uses a C-style syntax, which is familiar to many programmers. It has a more verbose syntax than Fortran, but it is also more flexible and expressive. |
| Paradigm | Fortran is primarily a procedural language, but it also supports some object-oriented programming features. It is often used for scientific and engineering applications. | Java is an object-oriented language that supports imperative, functional, and procedural programming paradigms. It is widely used for web and mobile development, as well as enterprise applications. |
| Typing | Fortran is a statically typed language, which means that variable types are determined at compile time. It has limited support for dynamic typing. | Java is also a statically typed language, but it has more advanced support for dynamic typing through the use of generics and reflection. |
| Performance | Fortran is known for its high performance and efficiency, especially for scientific and engineering applications that require complex mathematical calculations. | Java is generally slower than Fortran, but it has improved significantly in recent years and is now suitable for many high-performance applications. |
| Libraries and frameworks | Fortran has a limited number of libraries and frameworks compared to Java, but it has a strong ecosystem for scientific and engineering applications. | Java has a vast array of libraries and frameworks for almost any application domain, including web development, mobile development, and enterprise applications. |
| Community and support | Fortran has a smaller community than Java, but it is still active and has a strong presence in scientific and engineering communities. | Java has a large and active community with many resources and support options available, including online forums, documentation, and training courses. |
| Learning curve | Fortran has a steeper learning curve than Java, especially for programmers who are not familiar with scientific and engineering applications. However, it is still relatively easy to learn compared to other low-level languages. | Java has a relatively low learning curve, especially for programmers who are already familiar with C-style syntax. It has a large number of resources and tutorials available to help new programmers get started. |
Common questions
Frequently Asked Questions
How do I convert Fortran to Java?
Paste your Fortran code into the input box, confirm the languages are set to Fortran and Java, and click Convert. CodeConvert AI analyzes your Fortran code and generates equivalent Java code in seconds, preserving the original logic and structure.
What are the main differences between Fortran and Java?
Fortran and Java differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Fortran construct to its closest Java equivalent. See the comparison table below for the key differences between Fortran and Java.
Is the converted Java code accurate?
The AI produces high-quality Java code that preserves the behavior of your original Fortran code and follows Java conventions. It handles common patterns, data structures, and idioms for both Fortran and Java. For large or performance-critical code, review and test the Java output before using it in production.
Can I convert an entire Fortran project to Java?
You can convert Fortran files one at a time by pasting each file's code. For a full migration, convert each file and then review how classes, dependencies, and project structure map from Fortran to Java. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Java back to Fortran?
Yes. CodeConvert AI converts in both directions, so you can convert Java to Fortran just as easily using our Java to Fortran converter. Try the Java to Fortran Converter
Is the Fortran to Java converter free, and do I need to install anything?
Yes, it is free and runs in your browser with nothing to install and no IDE extension required. You can convert Fortran to Java without an account for up to 2 conversions per day. Sign in for free for higher limits.
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro converter with more powerful AI models, a built-in chat assistant, code execution, saved conversion history, and personal notes. Every free account includes 5 credits and supports up to 25,000 characters of input per conversion, with no credit card required.
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