Here you can find the source of encrypt(String string)
private static final String encrypt(String string)
//package com.java2s; /* Copyright (C) 2003-2016 Patrick G. Durand * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License.//from ww w .j a v a2 s . co m */ public class Main { private static final String encrypt(String string) { char chars[] = string.toCharArray(); int len, i = 0; for (len = chars.length; i < len; i++) chars[i] = (char) (~chars[i]); return new String(chars); } }