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| package com.tcm.training.admin.common;
|
| public class PhoneMasker {
|
| private PhoneMasker() {
| }
|
| public static String mask(String phone) {
| if (phone == null) {
| return null;
| }
| String p = phone.trim();
| if (p.length() < 7) {
| return p;
| }
| return p.substring(0, 3) + "****" + p.substring(p.length() - 4);
| }
| }
|
|