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What is a NullPointerException, and how do I fix it?
...is appropriate to throw the NullPointerException because it's a programmer error and the programmer will need that information for debugging purposes. Please include the name of the object variable in the exception message, like
Objects.requireNonNull(a, "a");
Alternatively, there may be cases whe...
Determine if code is running as part of a unit test
... test framework.
The reason I need this is because I show a MessageBox on errors. But my unit tests also test the error handling code, and I don't want a MessageBox to pop up when running unit tests.
/// <summary>
/// Detects if we are running inside a unit test.
/// </summary>
public ...
Count the number of occurrences of a character in a string in Javascript
...) returns null, meaning length() will return 0 instead of producing a type error.
– Nathan
Sep 20 '12 at 6:27
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What is the explicit promise construction antipattern and how do I avoid it?
...of the occurrences I've seen, the author has forgotten to take care of the error handler:
return new Promise(function(resolve) {
getOtherPromise().then(function(result) {
resolve(result.property.example);
});
})
If the other promise is rejected, this will happen unnoticed instead ...
libpng warning: iCCP: known incorrect sRGB profile
...trying to load a PNG image using SDL but the program doesn't work and this error appears in the console
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How to skip “Loose Object” popup when running 'git gui'
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Why doesn't Java support unsigned ints?
...);
b = (char) (b % 3);
b = (char) (b / a);
//a = -1; // Generates complier error, must be cast to char
System.out.println(a); // Prints ?
System.out.println((int) a); // Prints 65532
System.out.println((short) a); // Prints -4
short c = -4;
System.out.println((int) c); // Prints -4, notice the diff...
How to state in requirements.txt a direct github source
...h to a local project or a VCS url beginning with svn+, git+, hg+, or bzr+" error message.
– Srini
Feb 23 '17 at 22:47
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JavaScript, get date of the next day [duplicate]
...start with "0" is octal and has been deprecated. So this code may cause an error in strict mode. And, what you wrote is 03 instead of 04 ...
– tsh
Jan 20 '15 at 4:42
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Retain precision with double in Java
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ViralShah: It also potentially introduces floating-point error when dealing with mathematical operations. Given that the point of this exercise is to avoid exactly that, it seems prudent to alter it.
– Samir Talwar
Mar 18 '10 at 9:00
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