例6.7.txt

《Java程序设计与应用》-张仕斌-源程序 《Java程序设计与应用》-张仕斌-源程序

//例6.7：多态的应用举例。
abstract class Driver
{
	public abstract void drives();
}
class FemaleDriver extends Driver
{
	public void drives()
	{
		System.out.println("一个女司机开汽车");	
	}	
}
class MaleDriver extends Driver
{
	public void drives()
	{
		System.out.println("一个男司机开汽车");	
	}	
}
public class Polymorphism_test
{
	public static void main(String args[])
	{
		Driver a = new FemaleDriver();
		Driver b = new MaleDriver();
		a.drives();
		b.drives();
	}	
}