查找2个有序整数数组的合集

/**
 * 查找2个有序整数数组的合集
 * 
 * @author Java人(javaren.org)
 */
public class TestRetainAll {
  public static void main(String[] args) {
    int[] a = { 1, 5, 8, 10, 14, 15, 17, 18, 20, 22, 24, 25, 28 };
    int b[] = { 2, 4, 6, 8, 10, 12 };
    int i = 0;
    int j = 0;
    while (i < a.length && j < b.length) {
      if (a[i] < b[j]) {
        i++;
      } else if (a[i] == b[j]) {
        System.out.println(a[i]);
        i++;
        j++;
      } else {
        j++;
      }
    }
  }
}