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Meaning of Android Studio error: Not annotated parameter overrides @NonNull parameter
...(And also)
import android.support.annotation.NonNull;
The purpose is to allow the compiler to warn when certain assumptions are being violated (such as a parameter of a method that should always have a value, as in this particular case, although there are others). From the Support Annotations doc...
What does curly brackets in the `var { … } = …` statements do?
...h JavaScript 1.7 features. The first one is block-level variables:
let allows you to declare variables, limiting its scope to the block, statement, or expression on which it is used. This is unlike the var keyword, which defines a variable globally, or locally to an entire function regardless of...
git diff renamed file
...t/a.txt
similarity index 100%
copy from a.txt
copy to test/a.txt
Incidentally, if you restrict your diff to just one path (as you do in git diff HEAD^^ HEAD a.txt you aren't ever going to see the renames or copies because you've excluded the everything apart from a single path and renames or copie...
Operator overloading : member function vs. non-member function?
...use it can have only one parameter and the other parameter passed automatically is the this pointer. So no standard exists to compare them. On the other hand, overloaded operator declared as a friend is symmetric because we pass two arguments of the same type and hence, they can be compared.
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Do we still need end slashes in HTML5?
...
@FreeRadical is correct. This answer is technically incorrect, because it confuses an ending slash with an end tag, and thus misunderstands the spec paragraphs that it quotes. This leads to @YannisDran's confusion. @minitech correctly states what is true.
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Is there a way to ignore a single FindBugs warning?
...mycompany.Foo" />
<Method name="bar" />
<Bug pattern="DLS_DEAD_STORE_OF_CLASS_LITERAL" />
</Match>
However, to solve this issue, FindBugs later introduced another solution based on annotations (see SuppressFBWarnings) that you can use at the class or at the method level ...
count (non-blank) lines-of-code in bash
... Just habit. I read pipelines from left to right, which means I usually start with cat, then action, action, action, etc. Clearly, the end result is the same.
– Michael Cramer
Sep 24 '08 at 14:06
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How to generate an openSSL key using a passphrase from the command line?
... running on the machine at the time, since command-line arguments are generally visible to all processes.
A better alternative is to write the passphrase into a temporary file that is protected with file permissions, and specify that:
openssl genrsa -aes128 -passout file:passphrase.txt 3072
Or s...
What's the complete range for Chinese characters in Unicode?
U+4E00..U+9FFF is part of the complete set,but not all
6 Answers
6
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Undo a particular commit in Git that's been pushed to remote repos
... And use the -n switch if you want the code back, but not automatically committed in again
– jaygooby
Nov 22 '11 at 12:09
18
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