import java.util.*;public class Main {public static void main(String[] args) {Scanner sc = new Scanner(System.in);while (sc.hasNext()) {//输入字符串String s = sc.nextLine();// 替换字符串中的字母为空格String s1 = s.replaceAll("[a-z]", " ");// 分割字符串String[] strArray = s1.split(" ");///创建HashMap，存储分割的子数字串,key存储长度，value存储数字串HashMap<Integer, String> hashMap = new HashMap<>();//把字符串中的各个子数字串存入linkedHashMap，key存储长度，value存储数字串.在map中，key不能重复，如果有相同的key,后面添加的值会覆盖前面添加的值for (int i = 0; i < strArray.length; i++) {if ((strArray[i].length() != 0) && (strArray[i].charAt(0) != ' ')) {hashMap.put(strArray[i].length(), strArray[i]);}}//输出最长的数字串int length = 0;String num = "";for (Integer key : hashMap.keySet()) {if (key >= length) {length = key;num = hashMap.get(key);}}System.out.println(num + "," + length);}sc.close();}
}

3
0x62 0x80  0x00
2
4
5

6
5

import java.util.Scanner;public class Main1 {public static void main(String[] args) {Scanner sc = new Scanner(System.in);while (sc.hasNext()) {//输入字节数组长度uiIutputLenint uiIutputLen = sc.nextInt();//输入字节数组aInputByte：  0x62 0x80  0x00String str = "";String[] aInputByte = new String[uiIutputLen];for (int i = 0; i < aInputByte.length; i++) {aInputByte[i] = sc.next();str += aInputByte[i];}//输入解析数值个数uiElementNumint uiElementNum = sc.nextInt();//输入各个解析数值的位数int[] array = new int[uiElementNum];for (int i = 0; i < array.length; i++) {array[i] = sc.nextInt();}//字节数组aInputByte[3]为{0x62, 0x80, 0x00}，对应二进制为“0110 0010, 1000 0000, 0000 0000”；//去掉16进制数前的0xString newStr = str.replaceAll("0x", " ");String[] strArray = newStr.split(" ");//把16进制数转换成二进制数，并且连接到一起String binaryString = "";for (int i = 0; i < strArray.length; i++) {if ((strArray[i].length() != 0) && (strArray[i].charAt(0) != ' ')) {binaryString += hexString2binaryString(strArray[i]);}}//二进制数转十进制，输出结果int begin = 0;int end = array[0];for (int i = 0; i < uiElementNum; i++) {String s = binaryString.substring(begin, end);System.out.println(Integer.parseInt(s, 2));begin = end;//判断有没有超出数组范围if ((i + 1) >= uiElementNum) {break;}end = array[i + 1] + begin;}}sc.close();}//16进制转2进制public static String hexString2binaryString(String hexString) {if (hexString == null || hexString.length() % 2 != 0)return null;String bString = "", tmp;for (int i = 0; i < hexString.length(); i++) {tmp = "0000"+ Integer.toBinaryString(Integer.parseInt(hexString.substring(i, i + 1), 16));bString += tmp.substring(tmp.length() - 4);}return bString;}}