20165329 "Java Programming" ninth week learning summary

20165329 "Java Programming" ninth week learning summary

Textbook learning content summary

Chapter 12 URL Class

• Constructor 1

  try {  URL url = new URL("http://www.google.com");
  }
  catch(MalformedURLException e) {
     System.out.println("Bad URL:"+url);
  }

• Constructor 2: public URL(String protocol,String host,String file) throws MalformedURLException InetAddressGet the address with a class
• Get the host address on the InetAddress, use the static method getByName(String s)
• To get the local machine address, use the static method getLocalHost()
• socket
• ServerSocket objects and server-side sockets

• Use multithreading technology
  

• Datagram

  通过网络传输的数据的基本单元，包含一个报头（header）和数据本身，其中报头描述了数据的目的地以及和其它数据之间的关系。

• java remote call

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