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How do you remove a Cookie in a Java Servlet

...ation: A negative value means that the cookie is not stored persistently and will be deleted when the Web browser exits. A zero value causes the cookie to be deleted. share | improve this answer ...
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Sort objects in ArrayList by date?

...MyObject o) { return getDateTime().compareTo(o.getDateTime()); } } And then you sort it by calling: Collections.sort(myList); However sometimes you don't want to change your model, like when you want to sort on several different properties. In that case, you can create comparator on the f...
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Android onCreate or onStartCommand for starting service

Usually when I create an Android service I implement the onCreate method, but in my last project this does not work. I tried implementing onStartCommand , and this seems to work. ...
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Speed up the loop operation in R

... over a data.frame object. It simply adds a new column to a data.frame and accumulates something. (simple operation). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtime. ...
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Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]

...better coding practice to define an images size in the img tag's width and height attributes? 7 Answers ...
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What's the point of OOP?

...e of the countless millions or billions spent on OOP education, languages, and tools, OOP has not improved developer productivity or software reliability, nor has it reduced development costs. Few people use OOP in any rigorous sense (few people adhere to or understand principles such as LSP); there...
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unix - head AND tail of file

Say you have a txt file, what is the command to view the top 10 lines and bottom 10 lines of file simultaneously? 20 Answer...
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How to get existing fragments when using FragmentPagerAdapter

...entPagerAdapter , as a helper class that implements the management of tabs and all details of connecting a ViewPager with associated TabHost . I have implemented FragmentPagerAdapter just as same as it is provided by the Android sample project Support4Demos . ...
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Checking in of “commented out” code [closed]

Ok, here is something that has caused some friction at my current job and I really didn't expect it to. Organized in house software development is a new concept here and I have drawn up a first draft of some coding guidelines. ...
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Web Service vs WCF Service

...With it, you can communicate using Peer to Peer, Named Pipes, Web Services and so on. You can’t compare them because WCF is a framework for building interoperable applications. If you like, you can think of it as a SOA enabler. What does this mean? Well, WCF conforms to something known as ABC, w...