detergent.java

来自「java编程思想的部分实现」· Java 代码 · 共 37 行

//:c06 :Detergent.java

class Cleanser
{
	private String s=new String("Cleanser");
	public void append(String a){s+=a;}
	public void dilute(){append("dilute()");}
	public void apply(){append("apply()");}
	public void scrub(){append("scrub()");}
	public void Print(){System.out.println(s);}
	public static  void main(String []args)
	{
		Cleanser x=new Cleanser();
		x.dilute();x.apply();x.scrub();x.Print();
	}
}

public class Detergent extends Cleanser
{
	public void scrub()
	{
		append("detergent.scrub()");
		super.scrub();
	}
	public void foam(){append("foam()");}
	public static void main(String []args)
	{
		Detergent x=new Detergent();
		x.dilute();
		x.apply();
		x.scrub();
		x.foam();
		x.Print();
		System.out.println("Testing base class:");
		Cleanser.main(args);
	}
}