public static ArrayList<String[]> linesToArray(ArrayList<String> inLine){
  ArrayList<String[]> framesEnTab=new ArrayList<>();
  for (int i=0; i < inLine.size(); i++) {
    framesEnTab.add(lineToArray(inLine.get(i)));
  }
  return framesEnTab;
}

public static ArrayList < String [ ] > linesToArray ( ArrayList < String > inLine ) { ArrayList < String [ ] > framesEnTab = new ArrayList < > ( ) ; for ( int i = 0 ; i < inLine . size ( ) ; i ++ ) { framesEnTab . add ( lineToArray ( inLine . get ( i ) ) ) ; } return framesEnTab ; }
convert arraylist of string into arraylist of string [ ] ( split with spaces )
