abstract class fruit
{
	protected abstract void print();
}
class apple extends fruit
{
	//ʵֳеĳ󷽷
	public void print()
	{
		System.out.println("ƻ");
	}
}
class banana extends fruit
{
	//ʵֳеĳ󷽷
	public void print()
	{
		System.out.println("㽶");
	}
}
public class ObjectAssignment4_14 
{
	public static void main(String[] args) 
	{
		//ֵУ֮
		fruit f1=new apple();
		fruit f2=new banana();
		//printִеͬ
		f1.print();	
		f2.print();
	}
}
