数组中只出现一次的数字

import java.util.*;

public class Main21 {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        int n;
        int[] numb;
        while (scanner.hasNext()) {
            n = scanner.nextInt();
            numb = new int[n];
            for (int i = 0; i < n; i++) {
                numb[i] = scanner.nextInt();
            }
            int value = 0;
            for (int i = 0; i < n; i++) {
                value ^= numb[i];
            }
            int index = 0;
            while (((value & 1) == 0) && (index < 32)) {
                value = value >> 1;
                index++;
            }
            int num1 = 0, num2 = 0;
            for (int i = 0; i < n; i++) {
                value = numb[i] >> index;
                if ((value & 1) == 0) {
                    num1 ^= numb[i];
                } else {
                    num2 ^= numb[i];
                }
            }
            System.out.println(num1);
            System.out.println(num2);
        }
    }
}