File srcDir = new File("C:/Entertainment/");
File srcFile = null;
for (File dirMember : srcDir.listFiles()) {
if (!dirMember.isDirectory()) {
continue; // we don't need regular files
}
if (dirMember.getName().equals(".")) {
continue; // we don't need this directory
}
if (dirMember.getName().equals("..")) {
continue; // we don't need the parent directory
}
// This is the one you need.
srcFile = new File(new File(srcDir, dirMember.getName()), "break.avi");
}
Вы также можете использовать FileFilter, например, один из Commons IO
File dir = new File("C:/Entertainment/");
File[] files = dir.listFiles( DirectoryFileFilter.INSTANCE ); // returns all subdirs
srcFile = new File(files[0], "break.avi");