Mondai14_3.java

import Mondai14_2.java;

abstract class Student{
	void study(int hour){
		System.out.println("studied at home for " + hour + "hour(s).");
	}
	abstract void work(int hour);
}

class Pattern1 extends Student{
	void work(int hour){
		Convenience cv = new Convenience();
		cv.calc(hour);
		cv.hyouji();
	}
}

class Pattern2 extends Student{
	void work(int hour){
		System.out.println("gave a help for " + hour + " hour(s).");
	}
}

class Mondai14_3{
	public static void main(String[] args){
		Pattern1 tomoko = new Pattern1();
		Pattern1 tatsuhiro = new Pattern1();
		Pattern2 nobuyasu = new Pattern2();
		tomoko.work(3);
		tomoko.study(3);
		tatsuhiro.work(5);
		tatsuhiro.study(1);
		nobuyasu.work(2);
		nobuyasu.study(5);
	}
}