Java Inner Interface

Iterator and iterable objects in Java. Let's take a look at the difference between these two objects and how to implement the for each loop in a custom class.

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. 　　Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

In the past, we have introduced some principles of software development, such as the 10 commandments of high quality code and the UNIX design principles described in the UNIX legend (next article). I believe that you can learn from middle school some knowledge of design principles, as I said in the "How Do I Recruit procedures", a good programmer usually consists of its operational skills, knowledge level, experience level and ability four aspects. Here I would like to talk about some of the principles of design, I think these things belong to the long-term experience summed up knowledge. These principles should be understood by every programmer. But...

Translation: Esri Lucas The first paper on the Spark framework published by Matei, from the University of California, AMP Lab, is limited to my English proficiency, so there must be a lot of mistakes in translation, please find the wrong direct contact with me, thanks. (in parentheses, the italic part is my own interpretation) Summary: MapReduce and its various variants, conducted on a commercial cluster on a large scale ...

Overview The key information maintained by the control plane is the network state. The control plane must aggregate this information and make it available to the application. In addition, in order to maintain scalability and component reuse, applications should be exempt from protocol details, even though network state information is obtained through a specific protocol. The Onos topology of the protocol is implemented by two complementary mechanisms: Network Discovery and configuration. The former uses the network protocol to let Onos identify the location and/or performance of the network elements, and take the initiative to carry out the relevant collection work when the function is enabled. The latter allows applications and operations ...

[Introduction]: From the interactive designer to product manager unknowingly two years, although the role has not completely transformed, but the mentality and methods of doing things have undergone a significant change. The biggest change in mentality is: owner mentality (ownership), goal-driven, there is no excuse. The product manager must be a proactive person. He is not a human resource. He has no power. But he also has to co-ordinate various resources so that various roles can meet their goals and meet their goals together. During the encounter difficulties and setbacks are also many, one of the difficulties lies in the technical ...

At present, medical information construction is facing a certain dilemma: the phenomenon of hospital information Island is serious, the utilization of resources is low, it is difficult for hospital administrators to control the hospital business comprehensively; The regional information system construction lacks the overall planning, there are many problems such as numerous organizations, large business differences and difficult medical management. Medical institutions are also trying to find solutions to improve the user experience, reduce costs, and promote the development of medical information. 1.IBM Digital Hospital integrated platform solution IBM Digital Hospital Integrated Platform solution will achieve data-level integration of each business system. Mainly includes the following construction content: Building a ...

Absrtact: The author of this article Dong Fei is a Coursera software engineer. I have no more than 20 Silicon Valley first-line start-up companies, a list of companies. I do not talk about interview questions, mainly about their company growth, environment and culture, as far as possible objective neutral. Other popular Big article author Dong Fei is Coursera software engineer. I have no more than 20 Silicon Valley first-line start-up companies, a list of companies. I do not talk about interview questions, mainly about their company growth, environment and culture, as far as possible objective neutral. Other popular big companies such as Google, F ...