Need help please with coding

Hello sorry for my bad english but i need your help. This is the code :

Code:

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public class TekstoTvarkymas {
        private String[] sakinys = new String[1000];
        private String pirmasZodis;

        public TekstoTvarkymas(String pavadinimas) {
                Scanner scan = null;
                FileInputStream filein = null;
                try {
                        filein = new FileInputStream(pavadinimas);
                        scan = new Scanner(filein);
                        sakinys = scan.nextLine().trim().split(" ");
                        pirmasZodis = sakinys[0];
                } catch (IOException ex) {
                        System.out.println("Klaida skaitant faila " + pavadinimas);
                } finally {
                        if (filein != null)
                                scan.close();
                }
        }

        public int pasikartoja() {
                int kartojasi = 0;
                for (int i = 0; i < sakinys.length; i++)
                        if (sakinys[i] != null && sakinys[i].equalsIgnoreCase(pirmasZodis))
                                kartojasi++;
                return kartojasi;
        }

        public void naikintiPasikartojimus() {
                for (int i = 1; i < sakinys.length; i++)
                        if (sakinys[i] != null && sakinys[i].equalsIgnoreCase(pirmasZodis))
                                sakinys[i] = null;
        }

        @Override
        public String toString() {
                String s = "";
                for (String l : sakinys)
                        if (l != null )
                                s += l + " ";
                return s;
        }
}

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I need to change that similar words should be removed not changed to null please help.

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Specifically- what does your code do instead? Do you see Exceptions? Strange behavior? What were you expecting? What have you tried?

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Quote:

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Originally Posted by avaiblas

I need to change that similar words should be removed not changed to null please help.

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Can you explain what you mean by this?