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How do I find where JDK is installed on my windows machine?
...hich java
Should output the exact location.
After that, you can set JAVA_HOME environment variable yourself.
In my computer (Mac OS X - Snow Leopard):
$ which java
/usr/bin/java
$ ls -l /usr/bin/java
lrwxr-xr-x 1 root wheel 74 Nov 7 07:59 /usr/bin/java -> /System/Library/Frameworks/JavaV...
Importing a CSV file into a sqlite3 database table using Python
...ith panda. my csv is delimited by ';' and have ',' in entries. panda gives error on read_csv. any setting to read entries with commas w/out temporarily replace?
– Alexei Martianov
Jun 19 '16 at 6:42
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Fastest way to flatten / un-flatten nested JSON objects
...is implementation also has a prototype pollution bug, e.g. unflatten({"foo.__proto__.bar": 42})
– Alex Brasetvik
Feb 19 at 14:06
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How to track down a “double free or corruption” error
When I run my (C++) program it crashes with this error.
8 Answers
8
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leading zeros in rails
...herwise, returns str.
some_int = 5
some_int.to_s.rjust(2, '0') # => '05'
some_int.to_s.rjust(5, '0') # => '00005'
another_int = 150
another_int.to_s.rjust(2, '0') # => '150'
another_int.to_s.rjust(3, '0') # => '150'
another_int.to_s.rjust(5, '0') # => '00150'
...
Create ArrayList from array
...y));
Make sure that myArray is the same type as T. You'll get a compiler error if you try to create a List<Integer> from an array of int, for example.
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Generate all permutations of a list without adjacent equal elements
...
@flornquake Good catch! It's the good-old off-by-one error I'm afraid. So, this approach is not optimal, as it may have 1 conflict too many.
– Vincent van der Weele
Aug 13 '14 at 14:31
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Sorting Python list based on the length of the string
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def lensort(list_1):
list_2=[];list_3=[]
for i in list_1:
list_2.append([i,len(i)])
list_2.sort(key = lambda x : x[1])
for i in list_2:
list_3.append(i[0])
return list_3
This works for me!
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How can I get the count of milliseconds since midnight for the current?
...meMillis();
System.out.println(new Date(timeNow));
Fri Apr 04 14:27:05 PDT 2014
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How to change the docker image installation directory?
...mnt"
– mbarthelemy
Jun 23 '14 at 17:05
6
Doesn't work in Fedora. See my answer if your distro is ...