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Why does int num = Integer.getInteger(“123”) throw NullPointerException?
The following code throws NullPointerException :
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What is the best way to implement nested dictionaries?
...bad idea, don't do it. Instead, use a regular dictionary and use dict.setdefault where apropos, so when keys are missing under normal usage you get the expected KeyError. If you insist on getting this behavior, here's how to shoot yourself in the foot:
Implement __missing__ on a dict subclass to set...
Reintegrate can only be used if revisions X through Y were previously merged from to reintegra
Been using SVN branches with Tortoise 1.6. I've been periodically merging the trunk into the branch to keep it up to date.
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What linux shell command returns a part of a string? [duplicate]
I want to find a linux command that can return a part of the string. In most programming languages, it's the substr() function. Does bash have any command that can be used for this purpose. I want to be able to do something like this...
substr "abcdefg" 2 3 - prints cde .
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How can I tell where mongoDB is storing data? (its not in the default /data/db!)
...tance and there is no /db directory so now I am wondering what I can do to find out where the data is actually being stored.
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Get specific line from text file using just shell script
I am trying to get a specific line from a text file.
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Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
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7 Answers
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How to revert uncommitted changes including files and folders?
...itted changes in a working tree and index and to also remove newly created files and folders?
14 Answers
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What's the difference between dependencies, devDependencies and peerDependencies in npm package.json
This documentation answers my question very poorly. I didn't understand those explanations. Can someone say in simpler words? Maybe with examples if it's hard to choose simple words?
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