Transferring data in Java using streams?

If you just want to send characters, wrap your streams using an OutputStreamWriter on the writing side and an InputStreamReader on the reading side. You can write whole strings, then read one character at a time and print it. If you need to be really careful you should pick a fixed character encoding for both.

It depends on how the devices are connected. For example, they might connect via TCP, or via a shared file system.

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