java 去除数组重复数据，并输出重复数据值

/** * 去除重复数据 * @author Sunqinbo */public class RemoveDuplicateData {public static void main(String[] args) {Integer[] a = new Integer[] { 1, 4, 5, 2, -6, 5, 9, 10, 10 };Set<Integer> set = new HashSet<Integer>();for (int i = 0; i < a.length; i++) {boolean b = set.add(a[i]);if (!b) {System.out.println("重复数据：" + a[i] + "   索引位置：" + i);}}}}