用java代码模拟PC机上能插装并运行各种PCI设备 每台PC机上都有一个PIC插槽,插槽可插入的设备包括声卡、网卡、显卡等等。任何一个PCI设备都能启动、运行、停止。请模拟PC机上能插装并运行各种PCI设备。
时间: 2023-08-11 13:05:45 浏览: 86
这是一个比较复杂的问题,需要几步来实现:
1.定义PCI设备的接口,包括启动、运行、停止等方法。
```
public interface PCI {
void start();
void run();
void stop();
}
```
2.实现各种PCI设备类,包括声卡、网卡、显卡等等,并实现接口中定义的方法。
```
public class SoundCard implements PCI {
@Override
public void start() {
System.out.println("SoundCard is starting");
}
@Override
public void run() {
System.out.println("SoundCard is running");
}
@Override
public void stop() {
System.out.println("SoundCard is stopped");
}
}
public class NetworkCard implements PCI {
@Override
public void start() {
System.out.println("NetworkCard is starting");
}
@Override
public void run() {
System.out.println("NetworkCard is running");
}
@Override
public void stop() {
System.out.println("NetworkCard is stopped");
}
}
public class GraphicsCard implements PCI {
@Override
public void start() {
System.out.println("GraphicsCard is starting");
}
@Override
public void run() {
System.out.println("GraphicsCard is running");
}
@Override
public void stop() {
System.out.println("GraphicsCard is stopped");
}
}
```
3.定义PC机类,实现插拔PCI设备的功能。
```
public class PC {
private PCI device;
public void insert(PCI device) {
this.device = device;
device.start();
}
public void remove() {
if (device != null) {
device.stop();
device = null;
}
}
public void run() {
if (device != null) {
device.run();
} else {
System.out.println("No PCI device is inserted");
}
}
}
```
4.测试代码。
```
public class Test {
public static void main(String[] args) {
PC pc = new PC();
PCI soundCard = new SoundCard();
PCI networkCard = new NetworkCard();
PCI graphicsCard = new GraphicsCard();
pc.insert(soundCard);
pc.run();
pc.remove();
pc.insert(networkCard);
pc.run();
pc.remove();
pc.insert(graphicsCard);
pc.run();
pc.remove();
}
}
```
输出结果为:
```
SoundCard is starting
SoundCard is running
SoundCard is stopped
NetworkCard is starting
NetworkCard is running
NetworkCard is stopped
GraphicsCard is starting
GraphicsCard is running
GraphicsCard is stopped
```
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