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

how about this :)

for (int i=0; i< input.length();i++)
    if(input.indexOf(input.charAt(i)) == input.lastIndexOf(input.charAt(i)))
        System.out.println(input.charAt(i) + "  is unique");