Scanner拓展（随机50音图）

import java.util.Random;import java.util.Scanner;public class Reader {public static void main(String args[])  {/*平假名*/String[] arr1 = {"あ","い","う","え","お","か","き","く","け","こ","さ","し","す","せ","そ","た","ち","つ","て","と","な","に","う","ね","ね","は","ひ","ふ","へ","ほ","ま","み","む","め","も","や","ゆ","よ","ら","り","る","れ","ろ","わ","を"};/*片假名*/String[] arr2 = {"ア","イ","ウ","エ","オ","カ","キ","ク","ケ","コ","サ","シ","ス","セ","ソ","タ","チ","ツ","テ","ト","ナ","ニ","ヌ","ネ","ノ","ハ","ヒ","フ","ヘ","ホ","マ","ミ","ム","メ","モ","ヤ","ユ","ヨ","ラ","リ","ル","レ","ロ","ワ","ヲ"};/***合并***/String arr[]=new String[arr1.length+arr2.length];System.arraycopy(arr1, 0, arr, 0, arr1.length);System.arraycopy(arr2, 0, arr, arr1.length, arr2.length);Random random = new Random();int index;String input = "";Scanner scanner = new Scanner(System.in);System.out.println("******************************************");System.out.println("********　欢迎进入:　LamBo巧记五十音　********");System.out.println("******************************************");System.out.println();while (true) {index = random.nextInt(arr.length);System.out.println(arr[index]);System.out.println();while (true) {System.out.println("继续闯关 按Y 退出按 N");input = scanner.nextLine().trim();if (input.equalsIgnoreCase("y")) {break;}else if(input.equalsIgnoreCase("n")){System.out.println("谢谢使用Lambo随机五十音,拜拜~");System.exit(0);}}}}}