Java隐藏手机号或身份证号中间几位（保密）

package zjq.test;public class Test {public static void main(String[] args) {String phone = "18771632488";System.out.println(phone.replaceAll("(\\d{3})\\d{4}(\\d{4})","$1****$2"));String idCard = "421302199208165464";System.out.println(idCard.replaceAll("(\\d{4})\\d{10}(\\d{4})","$1****$2"));}}

结果：

187****2488
4213****5464

转载出处：http://blog.csdn.net/hekewangzi/article/details/50905098