/**
* SD卡接口
**/
public interface SDCard {
//读取SD卡方法
String readSD();
//写入SD卡功能
void writeSD(String msg);
}
/**
* SD卡实现类
**/
public class SDCardImpl implements SDCard {
@Override
public String readSD() {
String msg = "sd card reading data";
return msg;
}
@Override
public void writeSD(String msg) {
System.out.println("sd card write data : " + msg);
}
}
/**
* TF卡接口
**/
public interface TFCard {
//读取TF卡方法
String readTF();
//写入TF卡功能
void writeTF(String msg);
}
/**
* TF卡实现类
**/
public class TFCardImpl implements TFCard {
@Override
public String readTF() {
String msg = "tf card reading data";
return msg;
}
@Override
public void writeTF(String msg) {
System.out.println("tf card write data : " + msg);
}
}
/**
* 定义适配器类(SD兼容TF)
**/
public class SDAdapterTF extends TFCardImpl implements SDCard{
@Override
public String readSD() {
System.out.println("adapter read tf card ");
return readTF();
}
@Override
public void writeSD(String msg) {
System.out.println("adapter write tf card");
writeTF(msg);
}
}
public class Client {
public static void main(String[] args) {
Computer computer = new Computer();
SDCard sdCard = new SDCardImpl();
System.out.println(computer.read(sdCard));
SDAdapterTF adapterTF = new SDAdapterTF();
System.out.println(computer.read(adapterTF));
}
}
public class SDAdapterTF implements SDCard{
private TFCard tfCard;
public SDAdapterTF(TFCard tfCard) {
this.tfCard = tfCard;
}
@Override
public String readSD() {
System.out.println("adapter read tf card ");
return tfCard.readTF();
}
@Override
public void writeSD(String msg) {
System.out.println("adapter write tf card");
tfCard.writeTF(msg);
}
}
public class Client {
public static void main(String[] args) {
Computer computer = new Computer();
SDCard sdCard = new SDCardImpl();
System.out.println(computer.read(sdCard));
TFCard tfCard = new TFCardImpl();
SDAdapterTF adapterTF = new SDAdapterTF(tfCard);
System.out.println(computer.read(adapterTF));
}
}