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How do I change the IntelliJ IDEA default JDK?
I use IntelliJ IDEA as my development environment, and Maven for dependency management. I frequently build my project structure (directories, poms, etc) outside of IDEA and then import the project into IDEA using Import project from external model . This works great, except that in my poms I spec...
UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]
... unmodifiable map may still change. It is only a view on a modifiable map, and changes in the backing map will be visible through the unmodifiable map. The unmodifiable map only prevents modifications for those who only have the reference to the unmodifiable view:
Map<String, String> realMap ...
Changing the maximum length of a varchar column?
...olumn from 255 characters to 500 without losing the contents. I've dropped and re-created tables before but I've never been exposed to the alter statement which is what I believe I need to use to do this. I found the documentation here: ALTER TABLE (Transfact-SQL) however I can't make heads or tai...
How to reset Django admin password?
I am using Django (version 1.3) and have forgotten both admin username and password. How to reset both?
21 Answers
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Find integer index of rows with NaN in pandas dataframe
I have a pandas DataFrame like this:
11 Answers
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jquery IDs with spaces
... This helped me out a LOT. I am reading in some terrible HTML via ajax and have no control over the structure of the HTML or format of the IDs. Their IDs have spaces in them, so Elliot's answer helps tremendously, whereas glavic's offers no help at all.
– daybreaker
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Get the date (a day before current time) in Bash
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if you have GNU date and i understood you correctly
$ date +%Y:%m:%d -d "yesterday"
2009:11:09
or
$ date +%Y:%m:%d -d "1 day ago"
2009:11:09
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Replace tabs with spaces in vim
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IIRC, something like:
set tabstop=2 shiftwidth=2 expandtab
should do the trick. If you already have tabs, then follow it up with a nice global RE to replace them with double spaces.
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How to replace a string in a SQL Server Table Column
... where condition make sense because if I have 50 rows in table and if I am replacing 10 rows with replace function it affects all 50 rows, even though it replaces 10 rows if you dont have where condition. But if you have where condition like mentioned in above comment it only affects 10 ...
What does Java option -Xmx stand for? [duplicate]
...B. The upper limit for this value will be approximately 4000m on Solaris 7 and Solaris 8 SPARC platforms and 2000m on Solaris 2.6 and x86 platforms, minus overhead amounts. Examples:
-Xmx83886080
-Xmx81920k
-Xmx80m
So, in simple words, you are setting Java heap m...