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1、容器容器：CollectionMap接口List和setList：有序且数据可以重复arrylist底层是以数组实现linkedlist链表实现Set:无序但是数据唯一基本数据类型的包装类IntIntegercharcharacter其余的都是首字母大写Set中的remove方法具有自动装箱的功能Data流可以对传输的数据编码这是他最大的优点对象序列化1.实现serializble接口2给对象状态3创建对象输出流4把对象的状态通过输出流写出。反序列化:1.创建对象输入流对象2.通过输入流对象的readObje
2、ct()再生对象..Transient修饰的变量不会被序列化otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevi
3、ctoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand管道流是字节流PipedIputStream和PipedOutStream用于线程和
4、程序之间通信SequenceInputStream顺序流数组和集合的区别和联系联系都是存储数据的数组的长度是固定的2.集合只能存放引用数据类型3数组存放的数据类型必须相同4集合呢的数据类型可以不同5数组没有重写tostringList重写了toStringList有序可重复Set无序不可重复。Map的迭代获取map的entryset然后利用set的迭代来迭代网络通信TCP/IP网络协议otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiang
5、xi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,Shen
6、mufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand物理层链路层网络层传输层应用层ISO/OSI网络协议物理层链路层网络层传输层会话层表示层应用层Java4大类InetAddress面向IP层URL面向应用层Socket和DataGram面向传输层。TCP相关：SocketServerSocketUDP：Datagram
7、PacketDatagramSocketMulticastSocketTCP：有序安全InteAddress表示网络中的设备URL标示一块资源openStream()与指定的URL建立连接并返回一个InputStream对象。。Thread.interrup()某一个线程正处于阻塞态Thread.interrup()让他进入就绪态处理它的异常方法线程5中状态otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirector
8、ofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeentheNorthwestOfficeofth
