Question

This question is related (in some way) with this one.

Basically, I want to make a function, like this:

public InputOutputStream func()
{
    if (condition)
    {
        // open a file stream and convert to InputOutputStream 
    }
    else
    {
        // make an InputOutputStream from string
    }
}

Several questions arise:

• I can’t find anywhere class like InputOutputStream. It’s only InputStream and OutputStream and its variations (like InputDataStream, OutputDataStream, etc). Is there one? I need a stream which supports both read and write operations.
• How can I make an InputOutputStream from file?
• How can I make an InputOutputStream from string?

For C++ InputOutputStream is a std::iostream. And I can convert std::fstream or std::stringstream to it without any problems. Is it reachable in Java?

Thanks.

Answer 1

You could consider using a RandomAccessFile instead.