title: How to ues javac to compile .java files wrote in a txt file?
body: <p>I have some .java file, like a.java, b.java, c.java...., is there a way to compile them together by writting .java files' name into a txt file, and use some javac opitions to compile them?  Like "javac (some options here) a.txt".  The txt file contains the name of .java file that I want to compile.</p>