vFile(String kwname, DataInput i, DataOutput o) { img = vString.New(kwname); instream = i; outstream = o; openfiles.put(this, this); }
vFile() {}
vFile(String kwname, DataInput i, DataOutput o) {    img = vString.New(kwname);    instream = i;    outstream = o;    openfiles.put(this, this);				// remember open file}