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Asked: 2026-05-27T17:12:04+00:00

I have a Java application in which I wish to call to another C++

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I have a Java application in which I wish to call to another C++ application.
For that, in my Java I call

Runtime.exec(args)

My arg is “HelloWorldèçàœ”.

When my C++ recives this arg, it sees it as “HelloWorld????”. I looked in memory map and the characters èçàœ appear as 3f 3f 3f 3f.

( In addition, I am not sure that this is relevant, but when I compiled my C++, I have chosen the option: “Character Set = Use Multi-Byte Character Set” (in Properties->General). )

Q: How can I pass such a param from Java to C++?

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1 Answer

  1. Editorial Team

    It’s probably because of the encodings you’re using on both sides. Try to ensure that your “args” is stored as the UTF-8 string in Java, and try to read is as UTF-8 string in your C++ code.

    Othewise Java uses platform’s default encoding, which may be not even supporting these “èçàœ” characters.

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