Java tutorial
//package com.java2s; public class Main { public static int getStringUnicodeLength(String value) { int valueLength = 0; String chinese = "[\u4e00-\u9fa5]"; // Judge the unicodelength is 1 or 2 for (int i = 0; i < value.length(); i++) { String temp = value.substring(i, i + 1); if (temp.matches(chinese)) { valueLength += 2; } else { valueLength += 1; } } return valueLength; } }