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OSGi, Java Modularity and Jigsaw
...terday morning I hadn't a clue as to what OSGi even was. OSGi was just some buzzword that I kept seeing cropping up over and over again, and so I finally set aside some time to brush up on it.
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How would you implement an LRU cache in Java?
Please don't say EHCache or OSCache, etc. Assume for purposes of this question that I want to implement my own using just the SDK (learning by doing). Given that the cache will be used in a multithreaded environment, which datastructures would you use? I've already implemented one using LinkedHashM...
Remove all line breaks from a long string of text
...'s string and delete all line breaks to make it a single line of text. My method for acquiring the string is very simple.
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Get Specific Columns Using “With()” Function in Laravel Eloquent
...h(array('user'=>function($query){
$query->select('id','username');
}))->get();
It will only select id and username from other table. I hope this will help others.
Remember that the primary key (id in this case) needs to be the first param in the
$query->select() to actually...
Can I restore deleted files (undo a `git clean -fdx`)?
...my git sub directory. As a result, I just nuked an entire directory of documents with git clean -fdx .
Is there any way I can undo this terrible mistake?
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Git stash pop- needs merge, unable to refresh index
I can't pop my stash because I merged a branch which apparently conflicts with my stash and now my stash is seemingly unable to be popped.
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Default template arguments for function templates
Why are default template arguments only allowed on class templates? Why can't we define a default type in a member function template? For example:
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How do I specify unique constraint for multiple columns in MySQL?
... Would this work properly with the ON DUPLICATE KEY clause of INSERT statements? That is, if I were trying to insert a row that conflicted with another row's user/email/address values, would the INSERT do the actions specified by the ON DUPLICATE KEY clause instead?
– clizzin...
How to add percent sign to NSString
I want to have a percentage sign in my string after a digit. Something like this: 75%.
7 Answers
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Eclipse says: “Workspace in use or cannot be created, chose a different one.” How do I unlock a work
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Just delete the .lock file in the .metadata directory in your eclipse workspace directory.
Precaution - If you delete the .metadata folder all preference will be deleted.
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