Resolve Sibling during file moving
import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; public class Test { public static void main(String[] args) throws Exception{ Path sourceFile = Paths.get("C:/home/docs/users.txt"); Files.move(sourceFile, sourceFile.resolveSibling(sourceFile.getFileName() + ".bak")); } }