Whole text file to a String in Java

Question

Does Java has a one line instruction to read to a text file, like what C# has?

I mean, is there something equivalent to this in Java?:

String data =          


        

Answer 1

Java 7 improves on this sorry state of affairs with the Files class (not to be confused with Guava's class of the same name), you can get all lines from a file - without external libraries - with:

List fileLines = Files.readAllLines(path, StandardCharsets.UTF_8);

Or into one String:

String contents = new String(Files.readAllBytes(path), StandardCharsets.UTF_8);
// or equivalently:
StandardCharsets.UTF_8.decode(ByteBuffer.wrap(Files.readAllBytes(path)));

If you need something out of the box with a clean JDK this works great. That said, why are you writing Java without Guava?