Java tutorial
//package com.java2s; /* * 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. */ public class Main { public static long calculateWeiboLength(CharSequence c) { double len = 0; for (int i = 0; i < c.length(); i++) { int temp = (int) c.charAt(i); if (temp > 0 && temp < 127) { len += 0.5; } else { len++; } } return Math.round(len); } }