private ArrayList<String> extractNGrams(){
  ArrayList<String> list=new ArrayList<String>();
  NGram ngram=new NGram();
  for (int i=0; i < text.length(); ++i) {
    ngram.addChar(text.charAt(i));
    for (int n=1; n <= NGram.N_GRAM; ++n) {
      String w=ngram.get(n);
      if (w != null && wordLangProbMap.containsKey(w))       list.add(w);
    }
  }
  return list;
}

private ArrayList < String > extractNGrams ( ) { ArrayList < String > list = new ArrayList < String > ( ) ; NGram ngram = new NGram ( ) ; for ( int i = 0 ; i < text . length ( ) ; ++ i ) { ngram . addChar ( text . charAt ( i ) ) ; for ( int n = 1 ; n <= NGram . N_GRAM ; ++ n ) { String w = ngram . get ( n ) ; if ( w != null && wordLangProbMap . containsKey ( w ) ) list . add ( w ) ; } } return list ; }
extract n - grams from target text
