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Difference between solr and lucene
I know that Lucene and Solr are 2 differents Apache projects that are made to work together, but I don't understand what is the aim of each project.
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Java 256-bit AES Password-Based Encryption
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Share the password (a char[]) and salt (a byte[]—8 bytes selected by a SecureRandom makes a good salt—which doesn't need to be kept secret) with the recipient out-of-band. Then to derive a good key from this information:
/* Derive the key, given pass...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
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If you are doing something like writing HTML and Javascript in a code editor on your personal computer, and testing the output in your browser, you will probably get error messages about Cross Origin Requests. Your browser will render HTML and run Javascript, jQuery, a...
What is an application binary interface (ABI)?
...an ABI is. Please don't point me to a Wikipedia article. If I could understand it, I wouldn't be here posting such a lengthy post.
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What do < and > stand for?
I know that the entities &lt; and &gt; are used for < and > , but I am curious what these names stand for.
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View's getWidth() and getHeight() returns 0
I am creating all of the elements in my android project dynamically. I am trying to get the width and height of a button so that I can rotate that button around. I am just trying to learn how to work with the android language. However, it returns 0.
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Difference between == and ===
In swift there seem to be two equality operators: the double equals ( == ) and the triple equals ( === ), what is the difference between the two?
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How exactly does work?
I have a few <script> elements, and the code in some of them depend on code in other <script> elements. I saw the defer attribute can come in handy here as it allows code blocks to be postponed in execution.
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How to change the Push and Pop animations in a navigation based app
I have a navigation based application and I want to change the animation of the push and pop animations. How would I do that?
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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...f this question: I know HOW to create complicated views with both subviews and using drawRect. I'm trying to fully understand the when's and why's to use one over the other.
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