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Decode Base64 data in Java
...Who knew this would be the most controversial answer I'd ever post? I do know that sun.* packages are not supported or guaranteed to continue existing, and I do know about Commons and use it all the time. However, the poster asked for a class that that was "included with Sun Java 6," and that's wh...
How to maintain a Unique List in Java?
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Now I am confused, which one shall I use? I just need to have maintain a list of unique strings. So basically even when an existing string is added it should actually get added.
– user1804287
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How to support UTF-8 encoding in Eclipse
...Project -- Properties and select Resource on the left side menu.
You can now change the Text-file encoding to whatever you wish.
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why is plotting with Matplotlib so slow?
I'm currently evaluating different python plotting libraries. Right now I'm trying matplotlib and I'm quite disappointed with the performance. The following example is modified from SciPy examples and gives me only ~ 8 frames per second!
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Is it secure to store passwords as environment variables (rather than as plain text) in config files
... order of increasing strength) :
No security. Plain text. Anyone that knows where to look, can access the data.
Security by Obfuscation. You store the data (plaintext) someplace tricky, like an environment variable, or in a file that is meant to look like a configuration file. An attacker will...
How can I change an element's text without changing its child elements?
...s, however. e.g. if the text was at the end of the element first, it would now be at the start.
– Matt
Aug 31 '15 at 17:47
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Why is Java's SimpleDateFormat not thread-safe? [duplicate]
...t fall into the 97%, where "we should forget about small inefficiencies"? Now, I've seen folks, with custom web frameworks, wrapping controller in a synchronized block, and thus all access beyond including database calls, business logic - and then spending a huge effort on performance testing. No ...
Java compile speed vs Scala compile speed
...ing from Scala 2.7 to Scala 2.8, and I expect the improvements to continue now that the dust has settled on 2.8. This page documents some of the ongoing efforts and ideas to improve the performance of the Scala compiler.
Martin Odersky provides much more detail in his answer.
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How can I count text lines inside an DOM element? Can I?
...Rects();
It returns a javascript DOM object. The amount of lines can be known by doing this:
var amount_of_lines = message_lines.length;
It can return the height of each line, and more. See the full array of things it can do by adding this to your script, then looking in your console log.
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How to lock compiled Java classes to prevent decompilation?
...omer to make sure you actually are getting stuff from the right customer - now you are responsible for the keys...
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