삐삐사전

import java.util.Scanner; import java.util.regex.Pattern; public class HexMain { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String number = scanner.nextLine(); String[] nn = number.split(""); boolean flag = Pattern.matches("^[a-fA-F0-9]*$", number); try { if(flag) { System.out.println(Integer.parseInt(number, 16)); } else { throw new HexException(); } } ca..