citrus.java

金旭亮的java教案

class Fruit {				
	boolean zestySkin= false;
	protected void f()
	{
		System.out.println("Fruit.f()");
	}
}



public class Citrus extends Fruit {
	boolean zestySkin= true;  
	public void f()
	{
		super.f();
		System.out.println("Citrus.f()");
		} 
	public static void main (String args[]) {
		Citrus c = new Citrus();
		Fruit f = c; 
		/*System.out.println( " f.zesty = " + f.zestySkin );
		System.out.println( " c.zesty = " + c.zestySkin );
		System.out.println( " cast = " + ((Fruit) c).zestySkin );*/
		f.f();
		c.f();
		((Fruit)c).f();
		
	}
}