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This article introduces the relevant knowledge of "what are the three elements of java network programming". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. IP address, which is the identification of the device.

For computers on a network to communicate with each other, each computer must be assigned an identification number that specifies the computer to receive the data and the computer to identify the computer to send, and the IP address is this identification number. That is, the identification of the device.

2. The port is the identity of the application.

The communication of the network is essentially the communication of two applications. Each computer has a lot of applications, so how to distinguish these applications when communicating over the network? If the IP address can uniquely identify the device in the network, then the port number can uniquely identify the application in the device. Which is the identity of the application.

3. Protocols, the rules of connection and communication are called network communication protocols. The common protocols are UDP protocol and 3. TCP protocol.

Multiple computers can be connected through the computer network, and the computers located in the same network need to abide by certain rules when connecting and communicating, just like cars on the road must abide by the traffic rules. In the computer network, these rules of connection and communication are called network communication protocols, which uniformly stipulate the data transmission format, transmission rate, transmission steps and so on. Both sides of the communication must abide by at the same time in order to complete the data exchange. Common protocols are UDP protocol and TCP protocol.

What are the basic data types of java? the basic data types of Java are as follows:

1. Integer type, which is used to represent the data type of integer.

2. Floating point type, which is used to represent the data type of decimals.

3. Character type. The keyword of character type is "char".

4. Boolean type, which is the basic data type that represents logical values.

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