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Copy constructor versus Clone()
...r specified whether the Clone() method on ICloneable should be a deep or shallow clone, thus the interface is semantically broken as your callers won't know whether the call will deep or shallow clone the object.
Instead, you should define your own IDeepCloneable (and IShallowCloneable) interfaces ...
Removing duplicate rows from table in Oracle
... and populated a table with some sample data, but in the process I accidentally loaded duplicate records, so now I can't create a primary key using some of the columns.
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Will #if RELEASE work like #if DEBUG does in C#?
In all the examples I've seen of the #if compiler directive, they use "DEBUG". Can I use "RELEASE" in the same way to exclude code that I don't want to run when compiled in debug mode? The code I want to surround with this block sends out a bunch of emails, and I don't want to accidentally send tho...
Cannot convert lambda expression to type 'string' because it is not a delegate type [duplicate]
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This has to be the stupidest thing ever. Giving you a totally misleading error message instead of clearly stating that you miss a reference. Someone cannot program at microsoft. Well, thanks for the fix
– Liquid Core
Oct 24 '16 at 10:19
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Inline comments for Bash?
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Commenting in a Bash script
This will have some overhead, but technically it does answer your question
echo abc `#put your comment here` \
def `#another chance for a comment` \
xyz etc
And for pipelines specifically, there is a cleaner solution with no overhead
echo abc | ...
How to find the created date of a repository project on GitHub?
...ble date format followed Moment format pattern
Best performance by storing all fetched URIs in the Storage
Date of creation of a repository is displaying on the summary bar:
Date format is customizable by clicking at the extension icon:
This's working really well for me. I hope it's useful f...
How to test my servlet using JUnit
...ckito to have the mock return the correct params, verify they were indeed called (optionally specify number of times), write the 'result' and verify it's correct.
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import java.io.*;
import javax.servlet.http.*;
import org.apache....
Npm Please try using this command again as root/administrator
I've been desperately trying to install modules using node.js but it always fails getting packages with npm.
32 Answers
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Lambda expression vs method reference [closed]
...ded this feature to the language, when clearly we didn't strictly need to (all methods refs can be expressed as lambdas.)
Note that there is no right answer. Anyone who says "always use a method ref instead of a lambda" or "always use a lambda instead of a method ref" should be ignored.
This qu...
What is the concept of erasure in generics in Java?
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It's basically the way that generics are implemented in Java via compiler trickery. The compiled generic code actually just uses java.lang.Object wherever you talk about T (or some other type parameter) - and there's some metadata to t...