Ex9_2 코드

package org.javaro.lecture; public class Ex9_2 { public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("조병수-20191114-인터페이스"); KHello2 khello1 =new KHello2(); khello1.goodMorning2(); khello1.goodNight2(); EHello2 ehello1 = new EHello2(); ehello1.goodMorning2(); } } interface GoodMorning2{ abstract void goodMorning2(); } interface GoodNight2{ abstract void goodNight2(); } class KHello2 implements GoodMorning2, GoodNight2{ public void goodMorning2() { System.out.println("좋은 아침"); } public void goodNight2() { System.out.println("좋은 저녁"); } } class EHello2 implements GoodMorning2{ public void goodMorning2() { System.out.println("Good Morning Dear !!"); } }

실행창

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