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What is the memory consumption of an object in Java?
Is the memory space consumed by one object with 100 attributes the same as that of 100 objects, with one attribute each?
12...
How to find the kth largest element in an unsorted array of length n in O(n)?
...n in O(n). Or perhaps it's "expected" O(n) or something. How can we do this?
31 Answers
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Reading value from console, interactively
...'t like to do.
Instead set up a callback to be called each time something is entered:
var stdin = process.openStdin();
stdin.addListener("data", function(d) {
// note: d is an object, and when converted to a string it will
// end with a linefeed. so we (rather crudely) account for that ...
HTML5 best practices; section/header/aside/article elements
There is enough information about HTML5 on the web (and also on stackoverflow), but now I'm curious about the "best practices". Tags like section/headers/article are new, and everyone has different opinions about when/where you should use these tags. So what do you guys think of the following layout...
How can I measure the similarity between two images? [closed]
...e) with a previously taken screenshot to determine whether the application is displaying itself correctly. I don't want an exact match comparison, because the aspect could be slightly different (in the case of a Web app, depending on the browser, some element could be at a slightly different locatio...
How to automatically reload a page after a given period of inactivity
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If you want to refresh the page if there is no activity then you need to figure out how to define activity. Let's say we refresh the page every minute unless someone presses a key or moves the mouse. This uses jQuery for event binding:
<script>
var time ...
getActivity() returns null in Fragment function
I have a fragment (F1) with a public method like this
15 Answers
15
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How to overcome root domain CNAME restrictions?
We are hosting many web applications for our customers. As is obvious they want to use their own domains to refer to those applications, usually they want that any user that either type http://www.customer1.example or http://customer1.example goes to their web application.
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What is the difference between quiet NaN and signaling NaN?
...m operations. But I can't understand what these are concepts exactly. What is the difference between them?
2 Answers
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Why is enum class preferred over plain enum?
...// enum class
enum Animal { dog, cat, bird, human }; // plain enum
What is the difference between the two?
enum classes - enumerator names are local to the enum and their values do not implicitly convert to other types (like another enum or int)
Plain enums - where enumerator names are in the s...