public class Coffee {
    public int cost = 1;
    
    public int getCost(){
        return cost;
    }
}

public class Milk extends Coffee {
    Coffee _c;

    public Milk(Coffee c){
        _c = c;
    }
    
    public int getCost(){
        return _c.getCost() + 5;
    }
}

public class Whip extends Coffee {
    Coffee _c;
    
    public Whip(Coffee c){
        _c = c;
    }
    
    public int getCost(){
        return _c.getCost() * 2;
    }
}

    public static void main(String[] args) throws SOAPException, IOException {
        Coffee c = new Milk(new Whip(new Coffee()));
        
        System.out.println(c.getCost());
    }

public class Coffee {
    public int cost = 1;
    
    public Coffee(int i){
        cost = i;
    }
    
    public int getCost(){
        return cost;
    }
}

Stream*  aStream = new CompressingStream(
                        new ASCII7Stream(
                          new FileStream( "fileName.dat" )));
aStream->putString( "Hello world" );