HJ81 字符串字符匹配

法一

import java.util.*;
public class Main {public Main() {}public static void main(String[] args) {Scanner sc = new Scanner(System.in);Main solution = new Main();while (sc.hasNext()) {String pShort = sc.nextLine();String pLong = sc.nextLine();System.out.println(solution.isAllCharExist(pShort, pLong));}}public boolean isAllCharExist(String pShort, String pLong) {Set<Character> set = new HashSet<>();for (char ch : pLong.toCharArray()) {set.add(ch);}for (char ch : pShort.toCharArray()) {if (!set.contains(ch)) {return false;}}return true;}
}

法二

import java.util.*;
public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);while (scanner.hasNextLine()) {String a = scanner.nextLine();String b = scanner.nextLine();String[] arr = a.split(" ");int count = 0;for (int i = 0 ; i < arr.length ; i++ ) {if (b.contains(arr[i])) {count++;}}if (count == arr.length) {System.out.println(true);} else {System.out.println(false);}}}
}