$($Java$)$ You are given a text file called "master" that is structured this way: the first line contains a string which is the name of a file to be created. Subsequent lines are the names of other text files whose contents are to be copied into the new file, in the order that they appear. So$,$ if master's contents were:

bigfile

alist

blist

clist

then bigfile will contain the contents of alist, and tacked on to that will be the contents of blist followed by the contents of clist.

When finished, make sure that the data written to the new files have been flushed from their buffers and that any system resources used during the course of running your code have been released.$($Do not concern yourself with any possible exceptions here$--$ assume they are handled elsewhere.$)$