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How to add an integer to each element in a list?
...I want to add 1 to each element to get the output [2,3,4] ,
how would I do that?
11 Answers
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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...lar-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one replaceAll, but this is much less readable than the trim() solution. Nonetheless, it's provided here just to show what regex can do:
String[] tests = {
" x ", // [x]
" 1 ...
java.nio.file.Path for a classpath resource
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@zhuguowei that's a Spring-specific approach. It doesn't work at all when Spring isn't being used.
– Ryan J. McDonough
Jun 1 '18 at 21:04
2
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How can I catch all the exceptions that will be thrown through reading and writing a file?
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If you want, you can add throws clauses to your methods. Then you don't have to catch checked methods right away. That way, you can catch the exceptions later (perhaps at the same time as other exceptions).
The code looks like:
public void someMethode() throws SomeCheckedException {
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Visual Studio Clicking Find Results Opens Code in Wrong Window
I'm using Visual Studio 2010 and when I do a "Find in Files" the results are returned to the "Find Results 1" window which is docked below my code editor window.
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What's wrong with foreign keys?
...low of things faster since otherwise implicit relationships are explicitly documented
Reasons not to use Foreign Keys:
you are making the DB work extra on every CRUD operation because it has to check FK consistency. This can be a big cost if you have a lot of churn
by enforcing relationships, F...
What is the standard way to add N seconds to datetime.time in Python?
...seconds=3)
if you're so inclined.
If you're after a function that can do this, you can look into using addSecs below:
import datetime
def addSecs(tm, secs):
fulldate = datetime.datetime(100, 1, 1, tm.hour, tm.minute, tm.second)
fulldate = fulldate + datetime.timedelta(seconds=secs)
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In Java, how do I check if a string contains a substring (ignoring case)? [duplicate]
I have two String s, str1 and str2 . How do I check if str2 is contained within str1 , ignoring case?
6 Answers
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UTF-8 all the way through
...se, you'll need to set the connection charset to utf8mb4. This way, MySQL does no conversion from its native UTF-8 when it hands data off to your application and vice versa.
Some drivers provide their own mechanism for configuring the connection character set, which both updates its own internal s...
Moving from CVS to Git: $Id$ equivalent?
...f a version (albeit canonical). The git describe command offers others and does so quite well.
For example, when I run git describe in my master branch of my Java memcached client source, I get this:
2.2-16-gc0cd61a
That says two important things:
There have been exactly 16 commits in this tre...