题解 | #进制转换#
进制转换
https://www.nowcoder.com/practice/8f3df50d2b9043208c5eed283d1d4da6
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String hexStr = scanner.nextLine(); hexStr = hexStr.substring(2);//删除头两个字符0x不经过转换 int decimalNum = Integer.parseInt(hexStr, 16);//调用parseInt进行进制转换 System.out.println(decimalNum); } }