java-HJ81 字符串字符匹配
import java.util.HashSet;
import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String S = in.nextLine();
String T = in.nextLine();
char[] charsS = S.toCharArray();
char[] charsT = T.toCharArray();
HashSet<Character> sSet = new HashSet<>();
HashSet<Character> tSet = new HashSet<>();
for(char aChar: charsS){
sSet.add(aChar);
}
for(char aChar: charsT){
tSet.add(aChar);
}
if(sSet.size() > tSet.size()){
System.out.print("false");
}else{
if(tSet.containsAll(sSet)){
System.out.print("true");
}else{
System.out.print("false");
}
}
}
}