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Thread: Remove words

  1. #1
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    Default Remove words

    Hello , i have to remove from text files stop words , first i load text with stop words and put them in the arraylist after take the file i want to remove the stop words and put every word in an arraylist , after i try to remove from the listthe stop words but i cant make it i try to make a new arraylist and put the not stopwords in the new list but i take null.

    the code
    public class Anaktisi {
     
     
     
        public static void main(String[] args)throws IOException{
     
            String fileQue = "C:\\Users\\VagosM\\Desktop\\que.txt";
            String fileStpWo = "C:\\Users\\VagosM\\Desktop\\stopwords.txt";
            ArrayList  listStpWo ;
            ArrayList  listQue ;
            ArrayList  list = null ;
            int i ,j ;
            String word = null;
            boolean flag = true;
     
            listStpWo=readSave(fileQue);
    //        for(i=0;i<listStpWo.size();i++)
    //            System.out.println(listStpWo.get(i));
     
            listQue=readSave(fileQue);
    //        for(i=0;i<listQue.size();i++)
    //            System.out.println(listQue.get(i));
             list=removeStopWords(listQue , listStpWo)
            for(i=0;i<list.size();i++)
                System.out.println(list.get(i));
     
        }
     
        public static ArrayList readSave(String filePath){
         ArrayList  list = new ArrayList();   
            try {
     
               Scanner reader = new Scanner(new FileInputStream(filePath));
     
                    while(reader.hasNext()) {
                    list.add(reader.next());
                }	
     
                reader.close();
     
            }  catch(FileNotFoundException ex) {
                System.out.println("Unable to open file '" + 
                    filePath + "'");				
            }
            return list;
     
        }
     
        public static ArrayList removeStopWords(ArrayList listQue , ArrayList list){
           ArrayList  listre = new ArrayList ();
            String word = null;
            int i ,j ;
            boolean flag = true;
     
               for(j = 0 ; j < listQue.size() ; j++){ 
                    for(i = 0 ; i < list.size() ; i++) {  
                         if((listQue.get(j)).equals(list.get(i))){
                          flag = false; 
                             break;
                         }
                       }
     
                   if(flag!=false){
                    listre.add(word);
                    System.out.println(word);
                    }
                    }     
     
            return listre;
     
        }
     
    }

    Thanks sorry if my english is bad


  2. #2
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    Default Re: Remove words

    If you're getting an error, please post it. To better communicate what you're trying to do, it would help to post the input file and show what the program is supposed to do.

  3. The Following User Says Thank You to GregBrannon For This Useful Post:

    VagosM (March 22nd, 2014)

  4. #3
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    Default Re: Remove words

    I dont take an error but an empty list.

  5. #4
    Super Moderator Norm's Avatar
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    Default Re: Remove words

    There are three ArrayLists. Which one(s) are empty?
    Does the contents of the others look correct?
    If you don't understand my answer, don't ignore it, ask a question.

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