추상 메소드

package com.abs;

abstract class AbsEx1{
	int a = 100;
	public int getA(){
		return a;
	}
	//추상메소드
	abstract public String getStr();
	abstract public int getB();
}
abstract class AbsEx2 extends AbsEx1 {
	String str = "신세계";
	
	//AbsEx1의 추상 메서드 getStr()를 구현
	public String getStr(){
		return str;
	}
	
	//추상메소드
	abstract public int getC();
}

public class Exten02 extends AbsEx2{
	
	public int getB(){
		return 100;
	}
	public int getC(){
		return 200;
	}
	
	public static void main(String[] args){
		//추상클래스는 객체 생성 불가
		//AbsEx2 ab = new AbsEx2();
		
		Exten02 e = new Exten02();
	}
}