Ex8_22코드

package org.javaro.lecture; public class Ex8_22 { public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("조병수-20191107-상속"); smartPhone phone1= new smartPhone(); phone1.display(); } } abstract class Device{ String name; abstract void display(); } class smartPhone extends Device{ void display() { System.out.println("스마트폰 디스플레이"); } }

실행창

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