Java - Read all .txt files in folder

Question

Let\'s say, I have a folder called maps and inside maps I have map1.txt, map2.txt, and map3.txt. How can I u

Answer 1

With NIO you can do the following:

Files.walk(Paths.get("/path/to/files"))
          .filter(Files::isRegularFile)
          .filter(path -> path.getFileName().toString().endsWith(".txt"))
          .map(FileUtils::readFileToString)
          // do something

To read the file contents you may use Files#readString but, as usual, you need to handle IOException inside lambda expression.