Java tutorial
//package com.java2s; /* * Copyright (C) 2016 Jared Rummler <jared.rummler@gmail.com> * * 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 { /** * Indicates whether a character is classified as "Alphabetic" by the Unicode standard. * * @param c * the character * @return true if the character is "Alphabetic" */ public static boolean isAlphabetic(int c) { //http://www.unicode.org/Public/UNIDATA/UCD.html#Alphabetic //Generated from: Other_Alphabetic + Lu + Ll + Lt + Lm + Lo + Nl int generalCategory = Character.getType((char) c); switch (generalCategory) { case Character.UPPERCASE_LETTER: //Lu case Character.LOWERCASE_LETTER: //Ll case Character.TITLECASE_LETTER: //Lt case Character.MODIFIER_LETTER: //Lm case Character.OTHER_LETTER: //Lo case Character.LETTER_NUMBER: //Nl return true; default: //TODO if (ch in Other_Alphabetic) return true; (Probably need ICU4J for that) //Other_Alphabetic contains mostly more exotic characters return false; } } }