Querying Available COM Ports : COM Port « Development Class « Java

1. Java
2. Development Class
3. COM Port

Querying Available COM Ports

 

// Install the Java Comm API first. if there is no necessary file, say Dll files, the API 
// won't work.

import java.util.Enumeration;

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

public class ListPorts {
  public static void main(String args[]) {
    Enumeration ports = CommPortIdentifier.getPortIdentifiers();
    while (ports.hasMoreElements()) {
      CommPortIdentifier port = (CommPortIdentifier) ports.nextElement();
      String type;
      switch (port.getPortType()) {
      case CommPortIdentifier.PORT_PARALLEL:
        type = "Parallel";
        break;
      case CommPortIdentifier.PORT_SERIAL:
        type = "Serial";
        break;
      default: /// Shouldn't happen
        type = "Unknown";
        break;
      }
      System.out.println(port.getName() + ": " + type);
    }
  }
}

           
         
  

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