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Internet Addresses链接上网的设备被称为 nodes. Nodes that are computers are called hosts.Domain Name System (DNS)The InetAddress Classjava.net.InetAddressThe java.net.InetAddress class is Java’s high-level repres

Streams同步的streams需要等待读写完毕，才能继续做别的 Streams are synchronous; that is, when a program (really a thread) asks a stream to read or write a piece of data, it waits for the data to be read or written before

java network programming