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When to choose checked and unchecked exceptions
...ide their control has caused the operation to fail. For example, you try reading a file but someone deletes it between the time you check if it exists and the time the read operation begins. By declaring a checked exception, you are telling the caller to anticipate this failure.
Reasonable to recove...
What Makes a Good Unit Test? [closed]
...'t sticky enough - I have a printout of the cheatsheet in the book that I had to pull out to make sure I got this right..)
Automatic : Invoking of tests as well as checking results for PASS/FAIL should be automatic
Thorough: Coverage; Although bugs tend to cluster around certain regions in the cod...
Are getters and setters poor design? Contradictory advice seen [duplicate]
...mple, if you have a score counter on the game that only ever goes up, instead of
// Game
private int score;
public void setScore(int score) { this.score = score; }
public int getScore() { return score; }
// Usage
game.setScore(game.getScore() + ENEMY_DESTROYED_SCORE);
it should be
// Game
privat...
Please explain some of Paul Graham's points on Lisp
...eed some help understanding some of the points from Paul Graham’s What Made Lisp Different .
4 Answers
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?
...eFox 40.0.2 (observing Developer Network Tools, you can see that the URL loads, but the image is not displayed)
Internet Explorer 11.0.9600.17905 (URL never loads)
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Private vs Protected - Visibility Good-Practice Concern [closed]
...aking subclasses.
A class that is not intended to be inherited should be made final (in Java). You might relax some access rules (private to protected, final to non-final) for the sake of unit-testing, but then document it, and make it clear that although the method is protected, it's not supposed ...
Edit a commit message in SourceTree Windows (already pushed to remote)
...
Step 4
Edit the commit message, and then click OK. In my example, I've added
"SHAZBOT! SKADOOSH!"
Step 5
When you return to interactive rebase window, click on OK to finish the
rebase:
Step 6
At this point, you'll need to force-push your new changes since you've rebased
commits that you'...
How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
...(char *x);
$
Two levels of indirection
In a comment to another answer, Cade Roux asked why this needs two levels of indirection. The flippant answer is because that's how the standard requires it to work; you tend to find you need the equivalent trick with the stringizing operator too.
Section ...
How to avoid isset() and empty()
...ode that regularly try to use non-existent variables sounds like a rather badly structured program. Trying to access non-existent variables should never ever happen, other languages balk at this at compile time. The fact that PHP allows you to do it doesn't mean you should.
These warnings are there...
How to do a FULL OUTER JOIN in MySQL?
... edited Jan 8 '19 at 11:37
radbyx
8,1471717 gold badges7272 silver badges116116 bronze badges
answered Jan 25 '11 at 17:38
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