?? oreilly.java
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import java.net.*;class oreilly { public static void main (String args[]) { try { InetAddress address = InetAddress.getByName("www.oreilly.com"); boolean connected = address.isReachable(5000); //if (connected) System.out.println(address); } catch (UnknownHostException e) { System.out.println("Could not find www.oreilly.com"); } catch (java.io.IOException e) { System.out.println("Could not reach www.oreilly.com"); } }}?? 快捷鍵說明
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