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Is a Java hashmap search really O(1)?
... 2 = (n / capacity)2
This is much lower. Since the cost of handling one extra collision is irrelevant to Big O performance, we've found a way to improve performance without actually changing the algorithm! We can generalzie this to
pcollision x k = (n / capacity)k
And now we can disregard...
Optimal number of threads per core
...ld never include such a graph into their answer because you don't have the extra time/energy to make it look good. That is my point.
– tyrex
Nov 17 '14 at 1:59
...
How to select an option from drop down using Selenium WebDriver C#?
...cting control by ID and option by text):
protected void clickOptionInList(string listControlId, string optionText)
{
driver.FindElement(By.XPath("//select[@id='"+ listControlId + "']/option[contains(.,'"+ optionText +"')]")).Click();
}
use:
clickOptionInList("ctl00_ContentPlaceHolder_lbxAll...
Best way to require all files from a directory in ruby?
What's the best way to require all files from a directory in ruby ?
11 Answers
11
...
Showing empty view when ListView is empty
... setContentView(R.layout.mylist);
// shows list view
String[] values = new String[] { "foo", "bar" };
// shows empty view
values = new String[] { };
setListAdapter(new ArrayAdapter<String>(
this,
android.R.layout.s...
How to add a footer to a UITableView in Storyboard
... Thanks for the answer. It saved me a day. I was working on adding an extra cell with Button on it, and was trapped with CoreData failure when updating the tableView. I didn't know that it could be done like this. Such an easy and clean solution for me.
– John
...
Mercurial: how to amend the last commit?
...t).
||
||
\/
Caveat emptor:
This extra option will only be enabled if the mercurial version is at least
2.2.0, and if the current revision is not public, is not a patch and has no
children. [...]
Clicking the button will call
'commit --amend' ...
What does |= (ior) do in Python?
...o our regular integers above.
(1) Compare binary equivalents, seen here as strings (0b denotes binary):
>>> bin(a)
'0b1010'
>>> bin(b)
'0b10000'
(2) Apply a bitwise OR operation to each column (0 when both are 0, else 1):
01010
10000
-----
11010
(3) Return the result in the given...
Intelligent point label placement in R
...r head. Things like R, ggplot2, lattice etc. do most of the work; but that extra little bit of tweaking, adding a line here, adjusting a margin there, is probably better suited to a different tool.
:climbing down from soapbox:
I would also note that I think we could all come up with scatterplots w...
how to show progress bar(circle) in an activity having a listview before loading the listview with d
...ctivity extends Activity {
ListView listView;
LinearLayout layout;
List<String> stringValues;
ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (...