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“unmappable character for encoding” warning in Java

...o your line should read: String copyright = "\u00a9 2003-2008 My Company. All rights reserved."; share | improve this answer | follow | ...
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How can I detect if the user is on localhost in PHP?

... Which would make this actually easier to break than spoofing the IP. You should really change it. – Pekka Jan 13 '10 at 0:09 3 ...
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How to get the changes on a branch in Git

...ots, not three). This is identical to git log branch --not HEAD, and means all commits on branch that aren't on HEAD. share | improve this answer | follow | ...
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How to empty a list?

... This actually removes the contents from the list, but doesn't replace the old label with a new empty list: del lst[:] Here's an example: lst1 = [1, 2, 3] lst2 = lst1 del lst1[:] print(lst2) For the sake of completeness, the slic...
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try/catch + using, right syntax

...ng object creation to fail. But by wrapping an operation that could potentially fail in a try block, which allows you to pop an error message if something fails, the program now has the ability to recover and inform the user. – Jonathan Wood May 26 '11 at 22:12...
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Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use

... Tomcat default home page or a Tomcat-specific 404 error page. Both are equally valid evidence that Tomcat runs fine; if it didn't, then you would have gotten a browser specific HTTP connection timeout error message. You need to shutdown it. Go to /bin subfolder of the Tomcat installation folder an...
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How to select html nodes by ID with jquery when the id contains a dot?

...res both an id and a separate class to match; it's valid and not always totally redundant. The correct way to select a literal ‘.’ in CSS is to escape it: “#id\.moreid”. This used to cause trouble in some older browsers (in particular IE5.x), but all modern desktop browsers support it. The...
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How to print last two columns using awk

All I want is the last two columns printed. 6 Answers 6 ...
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How to compute the sum and average of elements in an array?

I am having problems adding all the elements of an array as well as averaging them out. How would I do this and implement it with the code I currently have? The elements are supposed to be defined as I have it below. ...
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Best way to allow plugins for a PHP application

... 5 = 9 4 * 5 = 20 Notes: For this example source code, you must declare all your plugins before the actual source code that you want to be extendable. I've included an example of how to handle single or multiple values being passed to the plugin. The hardest part of this is writing the actual d...