用java写一个获取用户信息的注解

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface UserInfo {
    String name();
    int age();
    String email();
}

@UserInfo(name = "John Doe", age = 25, email = "johndoe@example.com")
public class Main {
    public static void main(String[] args) {
        Class<Main> clazz = Main.class;
        UserInfo annotation = clazz.getAnnotation(UserInfo.class);
        
        if (annotation != null) {
            System.out.println("Name: " + annotation.name());
            System.out.println("Age: " + annotation.age());
            System.out.println("Email: " + annotation.email());
        }
    }
}

Name: John Doe
Age: 25
Email: johndoe@example.com