Java-使用java7将文件转换为Byte数组，反之亦然

Question

Please explain me by giving an example of the following syntax:

static byte[] readAllBytes(Path path)
static Path write(Path path, byte[] bytes, OpenOption... options)

I have a rough idea about path,bytes but OpenOption! So an example will be best. The code is related to java 7.

Answer 1

There is such an example in the Files class documentation .

 Path path = ...
 byte[] bytes = ...
 Files.write(path, bytes, StandardOpenOption.APPEND);

Answer 2

Code example:

Path path = Paths.get(pathToFile);
byte[] bArray = new byte[0];
try {
    bArray = Files.readAllBytes(path);
} catch (IOException e) {
    e.printStackTrace();
}