lab1v9

//lab 1 v 9
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;
import java.util.*;

class UniqueChars{
    public int cnt;
    public String s;

    public UniqueChars(int _c , String _s){
        cnt = _c;
        s = _s;
    }
}

public class Lab1 {
    public static void main(String[] args) {
        try{
            Set<UniqueChars> list = new TreeSet<UniqueChars>(new Comparator<UniqueChars>() {
                public int compare(UniqueChars o1, UniqueChars o2) {
                    return o1.s.compareTo(o2.s);
                }
            });
            BufferedReader bufferedReader = new BufferedReader(new FileReader("input.in"));
            int cur = bufferedReader.read();
            String s = "";
            while (cur != -1) {
                char ch = (char)cur;
                if(IsSeparator(ch)){
                    if(s.length() > 0){
                        int cnt = Count(s);
                        if(list.size() > 0){
                            if(list.iterator().next().cnt <= cnt){
                                if(list.iterator().next().cnt < cnt){
                                    list.clear();
                                }
                                list.add(new UniqueChars(cnt , s));
                            }
                        }else{
                            list.add(new UniqueChars(cnt , s));
                        }
                        s = "";
                    }
                }else{
                    s += ch;
                }
                cur = bufferedReader.read();
            }
            int cnt = Count(s);
            if(s.length() > 0){
                if(list.size() > 0){
                    if(list.iterator().next().cnt <= cnt){
                        if(list.iterator().next().cnt < cnt){
                            list.clear();
                        }
                        list.add(new UniqueChars(cnt , s));
                    }
                }else{
                    list.add(new UniqueChars(cnt , s));
                }
            }
            if(list.size() == 0){
                System.out.println("There is no words in the file");
            }else{
                for(UniqueChars uc : list){
                    System.out.println(uc.s);
                }
            }
        }catch(FileNotFoundException e){
            System.out.print("File not found");
        }catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static int Count(String s){
        int cnt = 0;
        boolean[] used = new boolean['z' + 1];
        for(int i = 0 ; i < s.length() ; ++i){
            if(used[s.charAt(i)] == false){
                used[s.charAt(i)] =  true;
                ++cnt;
            }
        }
        return cnt;
    }

    public static boolean IsSeparator(char ch){
        if('a' <= ch && 'z' >= ch)return false;
        if('A' <= ch && 'Z' >= ch)return false;
        return true;

    }
}