Parse Port : URL « Network « Java Tutorial

1. Java Tutorial
2. Network
3. URL

public class Utils {
  /**
   * @param hostStr
   * @param defaultPort
   * @return
   */
  static public int parsePort(String hostStr, int defaultPort) {
      int sepIdx = hostStr.indexOf(':');
      if (sepIdx < 0) {
          return defaultPort;
      } else {
          String portStr = hostStr.substring(sepIdx + 1).trim();
          try {
              return Integer.parseInt(portStr);
          } catch (NumberFormatException e) {
              return defaultPort;
          }
      }
  }
}