// HelloWorld.java
public class HelloWorld {
ㅤ public static void say(String message) {
ㅤㅤ System.out.println(message);
ㅤ }

ㅤ public static void sayToPerson(String message, String name) {
ㅤㅤ System.out.println(name + ", " + message);
ㅤ }
}

// MannersAspect.java
public aspect MannersAspect {
ㅤ pointcut callSayMessage() : call(public static void HelloWorld.say*(..));
ㅤ before() : callSayMessage() {
ㅤㅤ System.out.println("Good day!");
ㅤ }
ㅤ after() : callSayMessage() {
ㅤㅤ System.out.println("Thank you!");
ㅤ }
}