Here you can find the source of checkTurkish(char c)
public static boolean checkTurkish(char c)
//package com.java2s; public class Main { public static boolean checkTurkish(char c) { if (!(c == '\u011E' || c == '\u011F' || c == '\u015E' || c == '\u015F' || c == '\u0130' || c == '\u0131' || c == '\u00DC' || c == '\u00FC' || c == '\u00C7' || c == '\u00E7' || c == '\u00D6' || c == '\u00F6')) { return false; }//from ww w . ja va2 s . c o m return true; } }