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How to get the last value of an ArrayList
...seem very efficient to me. I come from C++, where there are actual front() and back() methods on the list object, that are internally implemented with head and tail references. Is there a similar mechanism in Java?
– Brady
Oct 13 '14 at 9:18
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Conventions for exceptions or error codes
...error codes.
The default behaviour of an exception is to unwind the stack and stop the program, if I'm writing a script an and I go for a key that's not in a dictionary it's probably an error, and I want the program to halt and let me know all about that.
If, however, I'm writing a piece of code ...
CSS to set A4 paper size
I need simulate an A4 paper in web and allow to print this page as it is show on browser (Chrome, specifically). I set the element size to 21cm x 29.7cm, but when I send to print (or print preview) it clip my page.
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HTML inside Twitter Bootstrap popover
...since it belongs to <a href="#" that's why it wasn't working, change it and it's all good.
Here is working JSFiddle which shows you how to create bootstrap popover.
Relevant parts of the code is below:
HTML:
<!--
Note: Popover content is read from "data-content" and "title" tags.
-->
<a...
Constructors in JavaScript objects
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@BorisB, yes you do - this defines color and getColor on the Box object, otherwise you're assigning variables in the usual scope.
– Nick
Jun 15 '12 at 16:23
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Best ways to teach a beginner to program? [closed]
...ad to work with several beginner (never wrote a line of code) programmers, and I'll be doing an after school workshop with high school students this fall. This is the closest thing I've got to documentation. It's still a work in progress, but I hope it helps.
1) FizzBuzz. Start with command line pr...
What does 'wb' mean in this code, using Python?
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File mode, write and binary. Since you are writing a .jpg file, it looks fine.
But if you supposed to read that jpg file you need to use 'rb'
More info
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there ar...
Split Strings into words with multiple word boundary delimiters
...task but I've found no reference on the web. I have text with punctuation, and I want a list of the words.
31 Answers
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Seeing escape characters when pressing the arrow keys in python shell
... use the arrow keys to move around in the current line or get previous commands (with arrow-up) etc.
23 Answers
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String concatenation: concat() vs “+” operator
Assuming String a and b:
11 Answers
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