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Java - get pixel array from image
...ring[] args) throws IOException {
BufferedImage hugeImage = ImageIO.read(PerformanceTest.class.getResource("12000X12000.jpg"));
System.out.println("Testing convertTo2DUsingGetRGB:");
for (int i = 0; i < 10; i++) {
long startTime = System.nanoTime();
int[][] r...
Diff output from two programs without temporary files
...
Adding a little more to the already good answers (helped me!):
The command docker outputs its help to STD_ERR (i.e. file descriptor 2)
I wanted to see if docker attach and docker attach --help gave the same output
$ docker attach
$ docker attach --hel...
Why doesn't println! work in Rust unit tests?
... cargo test -- --no-capture no longer works. I get the following error: thread '<main>' panicked at '"Unrecognized option: \'no-capture\'."', ../src/libtest/lib.rs:249
– Nashenas
Jul 15 '15 at 17:50
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I get exception when using Thread.sleep(x) or wait()
...
You have a lot of reading ahead of you. From compiler errors through exception handling, threading and thread interruptions. But this will do what you want:
try {
Thread.sleep(1000); //1000 milliseconds is one second.
} ca...
How to disable the warning 'define' is not defined using JSHint and RequireJS
...}
}
From the JSHint Docs - the false (the default) means the variable is read-only.
If you are defining globals only for a specific file, you can do this:
/*global describe, it, before, beforeEach, after, afterEach */
s...
What's the difference between Task.Start/Wait and Async/Await?
...Task that takes 10 ms would actually execute a 10 hour-long Task on your thread, thus blocking you for the whole 10 hours?
– svick
Apr 20 '13 at 11:10
64
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Why compile Python code?
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The .pyc file is Python that has already been compiled to byte-code. Python automatically runs a .pyc file if it finds one with the same name as a .py file you invoke.
"An Introduction to Python" says this about compiled Python files:
A program doesn't r...
When should I really use noexcept?
...re as to when I should consider using it in practice. Based on what I have read so far, the last-minute addition of noexcept seems to address some important issues that arise when move constructors throw. However, I am still unable to provide satisfactory answers to some practical questions that l...
Numpy matrix to array
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If you'd like something a bit more readable, you can do this:
A = np.squeeze(np.asarray(M))
Equivalently, you could also do: A = np.asarray(M).reshape(-1), but that's a bit less easy to read.
...
Spring Test & Security: How to mock authentication?
...thority("ROLE_USER"),
new SimpleGrantedAuthority("PERM_FOO_READ")
));
User managerUser = new UserImpl("Manager User", "manager@company.com", "password");
UserActive managerActiveUser = new UserActive(managerUser, Arrays.asList(
new SimpleGrant...