I'm not sure what "getABsoultefile()" is supposed to mean, but the java.io.File getAbsolutePath() method returns a string that corresponds to the absolute path of the File object. That is, the entire directory path all the way down from the filesystem root. I highly recommend it when there's likely to be doubt about what the current directory might might be, since the relative path might be confusing.
There's also something known as the "canonical path", which is simply the "official" absolute path. There can potentially be more than one absolute path to a file, especially on systems that allow soft-linked (alias) file paths. The canonical path is the one that is most direct.
An IDE is no substitute for an Intelligent Developer.