Reading text file into string
String content = TextFile.read("/tmp/file.txt", "utf-8");
Save string to text file
Stirng content = ...
TextFile.save("/tmp/file.txt", "utf-8", content);
Reading file into byte array
byte[] content = BinFile.readBytes("/tmp/file.txt");
Save byte array to file
byte[] content = ...
BinFile.save("/tmp/file.txt", content);