NonRepeatedCharacter

package ua.silent.nonrepeated;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.LinkedList;

public class main {

    public static void main(String[] args) throws IOException {
        LinkedList<String> string = getInputString();
        Boolean print = printNonReapeatCharacter(string);
        if (!print) {
            printNotNonRepeatedCharacter();
        }
    }

    private static LinkedList<String> getInputString() {
        System.out.println("Please enter the string:");
        String[] string = new String[0];
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {
            string = reader.readLine().split("");
        } catch (IOException e) {
            e.printStackTrace();
        }
        return new LinkedList(Arrays.asList(string));
    }

    private static Boolean printNonReapeatCharacter(LinkedList<String> string) {
        Boolean b = true;
        for(int i = 0; i < string.size(); i++){
            b = true;
            String character = string.get(i);
            for(int j = i + 1; j < string.size(); j++){
                if(character.equalsIgnoreCase(string.get(j))){
                    string.remove(j);
                    b = false;
                    j--;
                }
            }
            if(b){
                printFindNonRepeatedCharacter(character);
                break;
            }
        }
        return b;
    }

    private static void printFindNonRepeatedCharacter(String character){
        System.out.println("First non repeated character = " + character);
    }

    private static void printNotNonRepeatedCharacter() {
        System.out.println("This string does not contain a non repeated character");
    }
}