What can I do if some programming language has no methods to interact with Java

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Question: What can I do if some programming language has no methods to interact with Java program? I need to pass some info from Perl, PHP (xyz,...) program to Java program...

Answer: Best solutions which will work with most of languages are:
- make network connections, or if there is no networking functionality
- write/read information into/from file.
In both cases you need to implement your own protocol. In case with file you can use lastModified() to see when some info was sent from another program. If it is different from previous one it means that a new info was sent... Then just read it and use according to your protocol.
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