Here you can find the source of replaceAllKanjiWith(String text, String replacement)
public static String replaceAllKanjiWith(String text, String replacement)
//package com.java2s; public class Main { public static String replaceAllKanjiWith(String text, String replacement) { return text.replaceAll("[\u4e00-\u9faf]", replacement); }// ww w . j a v a2s .co m }