这个哪错了

import java.util.*;
public class if_else{
    public static void main(String[] args){
        Scanner in=new Scanner(System.in);
        System.out.println("请问你的性别");
        String sex=in.next();
        if(sex.equals("男")){
            System.out.println("你的年龄");
            int age=in.nextInt();
            if(age>=18){
                System.out.println("成年");
            }else{
                System.out.println("未成年"）;
            }
        }else{
            System.out.println("是个女的"）;
        }

    }
}