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AI2 Keep Awake
...t WakeLocks if you do not really need them, use them as rarely as possible and release them as soon as possible. If actions are to be performed only occasionally, it is not necessary for the CPU to be constantly active. Instead, an alarm can be used (see UrsAI2Alarm ). Motivation For so...
Are custom elements valid HTML5?
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The Custom Elements specification is available in Chrome and Opera, and becoming available in other browsers. It provides a means to register custom elements in a formal manner.
Custom elements are new types of DOM elements that can be defined by
authors. Unlike decorators, which ...
Why 0 is true but false is 1 in the shell?
...failure - why it happened, how to fix it, etc. Having zero mean 'success' and non-zero mean failure lets you can check pretty easily for success, and investigate the particular error for more details if you want to. A lot of APIs and frameworks have a similar convention - functions that succeed re...
What are Maven goals and phases and what is their difference?
What is the difference/relation between Maven goals and phases? How they are related to each other?
8 Answers
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Understanding the basics of Git and GitHub [closed]
I don't fully understand the purpose of using Git or Github; I know it helps to keep track of your changes and it's helpful for people collaborating with other people, but I don't collaborate with anybody so I don't know if this would be helpful for me.
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Storing JSON in database vs. having a new column for each key
...ing user related data in my table - I have 2 columns - uid (primary key) and a meta column which stores other data about the user in JSON format.
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How to estimate a programming task if you have no experience in it [closed]
...ing too long an estimate. Unanticipated problems occur, priorities change, and requirements are "updated". Even if you don't use all the time you asked for, you will have more testing time, or can release "early".
I've always been far too optimistic in my estimates, and it can put a lot of stress i...
CROSS JOIN vs INNER JOIN in SQL
What is the difference between CROSS JOIN and INNER JOIN ?
12 Answers
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When and why should I use fragments in Android applications? [duplicate]
... the different parts of my applications to have their own special behavior and UI, and I don't know how fragments can help. In most cases, I think it is quicker to create 2 different activities (e.g., 1 for tablets and 1 for handsets), and to share the common behaviors and events in a third class.
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C# using streams
...treams are kind of mysterious to me. I don't know when to use which stream and how to use them. Can someone explain to me how streams are used?
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