package com.fastcampus.ch2;

import java.lang.reflect.Method;

import java.lang.reflect.Parameter;

import java.util.StringJoiner;

public class MethodInfo {

public static void main(String[] args) throws Exception{

Class clazz = Class.forName("com.fastcampus.ch2.YoilTeller");

Object obj = clazz.newInstance();

Method[] methodArr = clazz.getDeclaredMethods();

for(Method m : methodArr) {

String name = m.getName();

Parameter[] paramArr = m.getParameters();

// Class[] paramTypeArr = m.getParameterTypes();

Class returnType = m.getReturnType();

StringJoiner paramList = new StringJoiner(", ", "(", ")");

for(Parameter param : paramArr) {

String paramName = param.getName();

Class paramType = param.getType();

paramList.add(paramType.getName() + " " + paramName);

}

System.out.printf("%s %s%s%n", returnType.getName(), name, paramList);

}

} // main

}

/* [실행결과]

java.lang.String main(java.lang.String year, java.lang.String month, java.lang.String day, org.springframework.ui.Model model)

boolean isValid(int year, int month, int day)

*/