Java File create temporary file in temporary directory

//package com.demo2s;
import java.io.File;

import java.util.UUID;

public class Main {
    public static void main(String[] argv) throws Exception {
        System.out.println(aTempFile());
    }/*from  w w  w . j a v a  2  s.co  m*/

    public static File aTempFile() {
        return removeableFile(tempFolder(), UUID.randomUUID().toString());
    }

    private static File removeableFile(File folder, String fileName) {
        File file = new File(folder, fileName);
        file.deleteOnExit();
        return file;
    }

    private static File tempFolder() {
        return new File(tempFolderName());
    }

    private static String tempFolderName() {
        return System.getProperty("java.io.tmpdir");
    }
}