10.30-11.5总结

package simplePhone;
public abstract class Phone {
public abstract void voice();
}

package simplePhone;
public class SimplePhone extends Phone{

public SimplePhone() {
    System.out.println("这是一部简单手机");
}

@Override
public void voice() {
    System.out.println("手机来电声音");
}

}

package simplePhone;
public class Changer extends Phone{
private Phone phone;
public Changer(Phone phone) {
this.phone=phone;
}

@Override
public void voice() {
    phone.voice();
}

}

package simplePhone;
public class ComplexPhone extends Changer{

public ComplexPhone(Phone phone) {
    super(phone);
    System.out.println("变成高级手机");
    flash();
}

public void flash() {
    System.out.println("手机来电闪烁灯光提示");
}

}

package simplePhone;
public final class JarPhone extends Changer{

public JarPhone(Phone phone) {
    super(phone);
    System.out.println("手机增加震动功能");
}

public void voice() {
    super.voice();
    System.out.println("来电震动");
}

}

package simplePhone;
public class Client {
public static void main(String[] args) {
Phone p1=new SimplePhone();
p1.voice();
System.out.println("");
Phone p2=new JarPhone(p1);
p2.voice();
System.out.println("");
Phone p3=new ComplexPhone(p2);
p3.voice();
}
}