/**
* gets the next line in the file
*
* @return next line
*/
public String next() {
if (pushedBackLine != null) {
String value = pushedBackLine;
pushedBackLine = null;
return value;
}
if (done) return null;
if (nextLine == null) hasNext();
if (nextLine != null) {
String result = nextLine;
nextLine = null;
lineNumber++;
if (progress != null) {
progress.setProgress(position);
}
return result;
}
return null;
}
