Package javaee. china. cxp;
Import org. junit. Test;
/*** Function of enumeration: Some programs require a certain range of values instead of any data during runtime. JDK 5 used a custom class to solve this problem,* After JDK 5, enumeration can be used directly.* The New enum keyword in jdk5 is used to define an enumeration class.* An enumeration can also contain constructors, fields, and methods.*/Public class Demo_7_emur {@ TestPublic void test_6 (
Package javaee. china. cxp;Import java. util. HashMap;Import java. util. Iterator;Import java. util. LinkedHashMap;Import java. util. Map;Import java. util. Set;Import java. util. Map. Entry;Import org. junit. Test;/*** Enhance the for Loop* Jdk1.5 and above are supported.* Adding a for loop can only be used in arrays or collections that implement the Iterable interface.* Adding for is only suitable for retrieving data.*/Public class Demo_5_for {@ Tes
Package javaee. china. cxp;Import junit. framework. Assert;Import org. junit. After;Import org. junit. AfterClass;Import org. junit. Before;Import org. junit. BeforeClass;Import org. junit. Test;/*** Java testing class* Use junit for testing* @ Test above the tested method** @ Before and @ After (@ Before is called Before each @ Test method is initialized. @ After is called After each @ Test method is completed)* @ BeforeClass and @ AfterClass (@ Befo
This dongdong implements some commonly used function, today just completes, everybody gives the point suggestion more!
Under the FF imperfect, some features have not yet been realized!
This is also I wrote the first editor (OH), do not do well, do not throw eggs over ...
Let's Go!
Copy Code code as follows:
/*******************************************
The best freeeditor in a litter (2006-08-22)
This JavaScript is writen by CXP.
*******
connected to a control display module with wireless transceiver function to form an independent device, therefore, the power consumption and volume of each module are greatly reduced. The patient can select different modules based on different needs. The LCD display on each module can display the measurement signal in real time. All these modules interact with the host machine through wireless information. The PC can register a unique serial number f
transmission distance can reach 50 m at Gbps. parallel Optical Communication supports parallel transmission of multiple light sources, which can achieve long-distance transmission at a high bit rate ,. this is one reason for parallel optical interconnection.
Parallel Optical module and Band Optical Cable
Parallel Optical Interconnection is achieved through parallel optical modules and band optical cables. the parallel optical module is based on VCSEL arrays and PIN arrays, with a wavelength of
Article title: ZK-ID6USB infrared has been successfully used in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Compared with the infrared transmitters integrated in the notebooks of major manufacturers, this independent USB port transmitter is difficult to drive in Linux, but it is still successful. The following describes how the IRDA subsystem works
, we have placed the annett Network Management Switch AT-8024 in the office area, connecting to our core switch Cisco 6509 via optical fiber and optical transceiver in the middle Cisco 6509 is configured as: super engine SUP720, a 16-port Gigabit Optical module WS-X6816-GBIC, A 48-port fast switching electrical module WS-X6548-RJ-45 ).
Trunk is set up on the corresponding port connecting the optical transceiver's 6509 and the annett switch's frame sea
card, which lays the foundation for the future development of personal communication. The 2. Base station subsystem (BSS) Base station subsystem is connected to the Mobile Service Switching Center (MSC) in the Network Path System (NSS) to achieve communication connections between mobile users or between mobile users and fixed network users, and to transmit system signals and user information. Of course, the BSS section should be operated and maintained, and the communication connection betwee
connected to the optical fiber. Therefore, from the hardware point of view, the dual-optical fiber access router must consider how the two WAN ports on the two optical fiber cables are connected to the router. According to the actual situation of Internet cafe users, there are mainly connection methods which are worth your reference. We recommend the first method.
The first method is to use optical fiber transceiver to connect the optical fiber to th
external reinforcing mode is a metal sleeve, and the fastening mode is a screw. The ST interface is usually used for 10Base-F, and the SC interface is usually used for 100Base-FX.
3. RJ-45 Interface
RJ-45 interface is the most commonly used Ethernet interface, RJ-45 is a common name, refers to the IEC (60) 603-7 standard, use a modular Jack or plug with 8 locations (8-pin) as defined by international connector standards.
Iv. Basic knowledge of optical terminal
1. What is an optical terminal?
An
optical fiber and optical transceiver in the middle Cisco 6509 is configured as: super engine SUP720, a 16-port Gigabit Optical module WS-X6816-GBIC, A 48-port fast switching electrical module WS-X6548-RJ-45 ).
Trunk is set up on the corresponding port connecting the optical transceiver's 6509 and the annett switch's frame sealing failure. The annett switch is divided into two VLANs, 172.25.6.0/24 or earlier, VLAN6) and 172.25.7.0/24 (VLAN7), machine
1. Overview
USB2.0 uses the shortening of transmission time series (microframe 125us) and related transmission technologies to increase the overall transmission speed from 12 Mbps to 480 Mbps, increasing the bandwidth by 40 times, it provides conditions for the development of high-bandwidth USB interface products. USB2.0 supports full speed and low speed working environments of USB1.1. Its electrical properties are described in other documents [6]. this section describes the electrical character
, but rather a straight line, that is, the line sequence at both ends of the jumper is identical, but it does not mean that as long as the line sequence is the same, for the 100Mbps network uses 100Mbps Exchange method, Refer to the previous chapter of this tutorial for details. One more note is that the cascade between the hub devices is usually done through a cascading port, and that the interconnection between routers and hubs is done through a normal port. In addition, the router and hub dev
Topic Links:ah haha, dot me dot MeTest Instructions:A region of the Arctic has n villages (1≤n≤500), each of which is represented by a pair of integers (x, y), of which 0≤x, y≤10000. In order to strengthen linkages, it was decided to establish communication networks between villages. The communication tool can be a radio transceiver, or it can be a satellite device. All villages can have a radio transceiver
transceiver lamp "Normal", the user is God, I believe you once, but still not pass ah, suspicion is the user firewall or internal network problems, let users restart equipment, and then contact the user.
The phone rang again, looking for someone, OK! Give a turn, just hang up the phone, telecommunications pass to the phone, ask us to do not network export access, I said do not need, this brother really dedicated, have to grind with me, I am anxious!!
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