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How to read and write excel file

...read and write an Excel file from Java with 3 columns and N rows, printing one string in each cell. Can anyone give me simple code snippet for this? Do I need to use any external lib or does Java have built-in support for it? ...
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get all keys set in memcached

...d on when they last had activity. If yes, you can change that by selecting one of active/oldest/votes from just below the question text. Other than that, this answer is at the top in incognito mode. – mu 無 Mar 29 '18 at 4:24 ...
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Where does PHP's error log reside in XAMPP?

... For any one searching for the php log file in XAMPP for Ubuntu, its: /opt/lampp/logs/php_error_log Most probably it will be having a big size (mine was about 350 mbs) and it slowed down my text editor after opening. If you do not ...
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When should I use Lazy?

...revent user latency in high throughput, low latency systems. This is just one of the many reasons to not "always" use Lazy. – Derrick Sep 30 '14 at 12:34 ...
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Rails: How does the respond_to block work?

...mental than some of the answers I found here. This may or may not help someone. respond_to is a method on the superclass ActionController. it takes a block, which is like a delegate. The block is from do until end, with |format| as an argument to the block. respond_to executes your block, passing ...
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Why seal a class?

...om how not allowing inheritance can be useful and most likely not the only one fighting these classes. 10 Answers ...
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How to determine if a string is a number with C++?

...;& s.find_first_not_of("0123456789") == std::string::npos; for a C++03 one-liner. – kbjorklu Jan 11 '11 at 7:03 8 ...
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Tips for a successful AppStore submission? [closed]

In a day or two I'll be ready to submit my iPhone app to the AppStore and I'm curious whether people who have gone through this process have any tips / suggestions for a smooth submission process. ...
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Real World Example of the Strategy Pattern

...e", but it's not yet clear what that rule will be, and we may think of new ones. Games: We want player to either walk or run when he moves, but maybe in the future, he should also be able to swim, fly, teleport, burrow underground, etc. Storing information: We want the application to store informati...
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How can I echo a newline in a batch file?

... the example doesn't need a period, but you do need one to echo a blank empty line: echo. && echo hello && echo. && echo world – matt wilkie Jun 16 '11 at 22:37 ...