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Are loops really faster in reverse?
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is it worth to introduce a variable for array.length and use it in the for loop's head?
– ragatskynet
Oct 30 '12 at 10:13
39
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How to check if a folder exists
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Also, note that both Files.exists(path) and Files.notExists(path) can return false at the same time! This means that Java could not determine if the path actually exists.
– Sanchit
Mar 22 '13 at 13:34
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Intelligent point label placement in R
...ints (or other objects in the plot, but I see that this is much harder to handle).
7 Answers
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When is the finalize() method called in Java?
... be called on the main class if the main class creates a non-daemon thread and then returns?
– Tom G
Feb 15 '14 at 21:24
3
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Different ways of clearing lists
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Why the first one will only affect a? I thought a and b reference to the same object... Just wanna know why. Thanks.
– Alston
Nov 22 '14 at 9:48
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Force page scroll position to top at page refresh in HTML
...nswered Nov 10 '14 at 6:12
ProfNandaaProfNandaa
2,25722 gold badges1212 silver badges1616 bronze badges
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Search all of Git history for a string? [duplicate]
...guration files which contain passwords. I made sure not to track this file and I also added it to the .gitignore file. However, I want to be absolutely positive that no sensitive information is going to be pushed, perhaps if something slipped in-between commits or something. I doubt I was careless...
Replacing instances of a character in a string
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Strings in python are immutable, so you cannot treat them as a list and assign to indices.
Use .replace() instead:
line = line.replace(';', ':')
If you need to replace only certain semicolons, you'll need to be more specific. You could use slicing to isolate the section of the string to r...
Xcode duplicate line
There is a Duplicate command in the Edit Menu (with a default shortcut of ⌘ D ), but it is (as Halley pointed out) meant for duplication in the Interface Builder part of Xcode.
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RAII and smart pointers in C++
... RAII , what are smart pointers , how are these implemented in a program and what are the benefits of using RAII with smart pointers?
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