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Picking a random element from a set
...eal life, the Random object should be rather more shared than this
int i = 0;
for(Object obj : myhashSet)
{
if (i == item)
return obj;
i++;
}
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What does (angle brackets) mean in Java?
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edited Mar 9 '17 at 0:58
Pang
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Fastest way to check if string contains only digits
...tsOnly(string str)
{
foreach (char c in str)
{
if (c < '0' || c > '9')
return false;
}
return true;
}
Will probably be the fastest way to do it.
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How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
...NSimple's ALIAS in BIND?
– wlf
Aug 30 '13 at 8:30
1
Don't think you can. It's a custom feature.
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How do you add CSS with Javascript?
...DOM Level 2 CSS interfaces (MDN):
var sheet = window.document.styleSheets[0];
sheet.insertRule('strong { color: red; }', sheet.cssRules.length);
...on all but (naturally) IE8 and prior, which uses its own marginally-different wording:
sheet.addRule('strong', 'color: red;', -1);
There is a theo...
How do HTML parses work if they're not using regexp?
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answered Mar 8 '10 at 10:45
QuentinQuentin
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Better explanation of when to use Imports/Depends
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answered Dec 26 '11 at 20:25
Josh O'BrienJosh O'Brien
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Remove Elements from a HashSet while Iterating [duplicate]
...hasNext()) {
Integer element = iterator.next();
if (element % 2 == 0) {
iterator.remove();
}
}
You will often see this pattern using a for loop rather than a while loop:
for (Iterator<Integer> i = set.iterator(); i.hasNext();) {
Integer element = i.next();
if (el...
How can I style an Android Switch?
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JanuszJanusz
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How do you check in python whether a string contains only numbers?
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