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| interface Brand{ void open(); void close(); void call(); }
class XiaoMi implements Brand{
@Override public void open() { System.out.println("小米手机开机"); }
@Override public void close() { System.out.println("小米手机关机"); }
@Override public void call() { System.out.println("小米手机打电话"); } }
class Vivo implements Brand{
@Override public void open() { System.out.println("Vivo手机开机"); }
@Override public void close() { System.out.println("Vivo手机关机"); }
@Override public void call() { System.out.println("Vivo手机打电话"); } }
abstract class Phone{ private Brand brand;
public Phone(Brand brand) { this.brand = brand; }
protected void open() { brand.open(); }
protected void close() { brand.close(); }
protected void call() { brand.call(); } }
class FoldedPhone extends Phone{
public FoldedPhone(Brand brand) { super(brand); }
@Override protected void open() { super.open(); System.out.println("折叠样式手机"); }
@Override protected void close() { super.close(); System.out.println("折叠样式手机"); }
@Override protected void call() { super.call(); System.out.println("折叠样式手机"); } }
class Client{ public static void main(String[] args) throws Exception { Phone foldPhone1 = new FoldedPhone(new XiaoMi()); foldPhone1.open(); foldPhone1.close(); foldPhone1.call(); System.out.println("==============="); Phone foldPhone2 = new FoldedPhone(new Vivo()); foldPhone2.open(); foldPhone2.call(); foldPhone2.close(); } }
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