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How to hash some string with sha256 in Java?
... Note that the result of the hash would also be arbitrary binary data, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(byte[], String) constructor.
e.g.
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] hash = digest.dige...
How to write a Unit Test?
...ne the expected and desired output for a normal case, with correct input.
Now, implement the test by declaring a class, name it anything (Usually something like TestAddingModule), and add the testAdd method to it (i.e. like the one below) :
Write a method, and above it add the @Test annotation.
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When do you use the “this” keyword? [closed]
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Do you know how your answer sounds to me? Between the lines I read "How do you dare to ask a question like this?" - That is really not constructive in my opinion. No one knows everything - this is why we have Stackoverflow: To help ...
How to automatically generate getters and setters in Android Studio
...on ALT+Insert on keyboard placing cursor down to variable declaration part
now select constructor and press Ctrl+A on keyboard and click on Enter to create constructor.
Now again placing cursor at next line of constructor closing brace , click ALT+INSERT and select getter and setter and again press ...
What are Flask Blueprints, exactly?
...presses" the mold of the blueprint on the application at the locations specified by url_prefix.
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PyPy — How can it possibly beat CPython?
...omment under that post, you will see that the writer of that post doesn't know link-time optimization. With link-time optimization enabled, the C code runs faster.
– Ali
Jun 26 '14 at 9:33
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Draw text in OpenGL ES
...ently developing a small OpenGL game for the Android platform and I wonder if there's an easy way to render text on top of the rendered frame (like a HUD with the player´s score etc). The text would need to use a custom font also.
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Python in Xcode 4+?
...longer work or are unclear due to changes in Xcode updates, please let me know. I will make the necessary corrections.
Open Xcode. The instructions for either are the same.
In the menu bar, click “File” → “New” → “New Project…”.
Select “Other” in the left pane, then "External...
jQuery: Select data attributes that aren't empty?
...18) (mar'19) (may'20)...
Answer that works with:
Empty strings:
If the attr must exist & could have any value (or none at all)
jQuery("[href]");
Missing attributes:
If attr could exist & if exist, must have some value
jQuery("[href!='']");
Or both:
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What does void mean in C, C++, and C#?
...hing
Generic data pointer: void* data
-- 'data' is a pointer to data of unknown type, and cannot be dereferenced
Note: the void in a function argument is optional in C++, so int myFunc() is exactly the same as int myFunc(void), and it is left out completely in C#. It is always required for a retur...