Java: Print a unique character in a string

Question

I\'m writing a program that will print the unique character in a string (entered through a scanner). I\'ve created a method that tries to accomplish this but I keep getting

Answer 1

public static String input = "10 5 5 10 6 6 2 3 1 3 4 5 3";

public static void uniqueValue (String numbers) {
    String [] str = input.split(" ");
    Set  unique = new HashSet  (Arrays.asList(str));
    System.out.println(unique);

    for (String value:unique) {
        int count = 0;
        for ( int i= 0; i