portmanager.java

来自「设计模式是软件工程的核心思想」· Java 代码 · 共 10 行

import java.util.*;
import javax.comm.*;

public abstract class PortManager {    
public static Enumeration getAllPorts() {return null;};
public static Enumeration getAvailablePorts(){return null;};
public static CommPort openPort(String portName){return null;};
public static CommPort openPort(){return null;};
}