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FileInputStream in = new FileInputStream(myFile); ByteArrayOutputStream out = new ByteArrayOutputStream(); Question: How can I read everything from in into out in a way which is not a hand-crafted loop with my own byte buffer?
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Among these, you can read the contents of a file using Scanner, BufferedReader and, FileReader classes. In the same way, you can write data into a file using BufferedWriter, FileOutputStream, FileWriter.
CopyTo(Stream, Int32) Reads the bytes from the current stream and writes them to another stream, using a specified buffer size. Both streams positions are advanced by the number of bytes copied.
So it is very important to remember that Java 8 streams can't be reused.
Write one method to do this, and call it from everywhere which needs the functionality. Guava already has code for this, in ByteStreams.copy. I'm sure just about any other library with "general" IO functionality has it too, but Guava's my first "go-to" library where possible. It rocks :)
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