Printing Distinct Numbers

so for class I have an assignment that involves printing distinct numbers. the assignment is as follows: Write a program that reads in ten numbers and displays the number of distinct numbers and the distinct numbers separated by exactly on space. Here is what the input and the output are supposed to look like:

Input: Enter Ten Numbers: 1 2 3 2 1 6 3 4 5 2
Output: The Number of distinct numbers is 6
The distinct numbers are: 1 2 3 6 4 5

So far I have the entire code but right now it only prints out the distinct numbers, not how many distinct numbers there are. what that part of the code would look like?Here is my current code:

public class exer75 {
public static void main(String[] args) {
java.util.Scanner input = new java.util.Scanner(System.in); //create scanner system
System.out.println("");
System.out.print("Enter Ten Numbers: "); //prompt the user to enter 10 numbers
int[] values = new int[10]; //create an array to hold the numbers

[code]...