Here you can find the source of replaceAllKanaWith(String text, String replacement)
public static String replaceAllKanaWith(String text, String replacement)
//package com.java2s; public class Main { public static String replaceAllKanaWith(String text, String replacement) { return text.replaceAll("[\u3040-\u3096]", replacement); }// w w w .jav a 2 s. c o m }