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Moving decimal places over in a double
...ould use rounding or expect to see some rounding errors. If you can't do this, use BigDecimal.
The problem you have is that 0.1 is not an exact representation, and by performing the calculation twice, you are compounding that error.
However, 100 can be represented accurately, so try:
double x = 1...
Is there a way to collapse all code blocks in Eclipse?
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There is a hotkey, mapped by default to Ctrl+Shift+NUM_KEYPAD_DIVIDE.
You can change it to something else via Window -> Preferences, search for "Keys", then for "Collapse All".
To open all code blocks the shortcut is Ctrl+Shif...
PHP: Storing 'objects' inside the $_SESSION
... I jump to another page I still have my object. Now before I start using this approach I would like to find out if it is really such a good idea or if there are potential pitfalls involved.
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Getting current device language in iOS?
I'd like to show the current language that the device UI is using. What code would I use?
31 Answers
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best practice to generate random token for forgot password
...me. So i am bit of confused here. Can i do it with using time stamp with this ?
5 Answers
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Why is JavaScript called JavaScript, since it has nothing to do with Java? [closed]
Since JavaScript is not derived from Java, why does it have "Java" in the name?
10 Answers
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What does the “map” method do in Ruby?
...lement, outputting each returned value from the block (the original object is unchanged unless you use map!):
[1, 2, 3].map { |n| n * n } #=> [1, 4, 9]
Array and Range are enumerable types. map with a block returns an Array. map! mutates the original array.
Where is this helpful, and what is...
How do I pass multiple parameters into a function in PowerShell?
...nd will cause a parse error in PowerShell 2.0 (or later) if Set-StrictMode is active. Parenthesised arguments are used in .NET methods only.
function foo($a, $b, $c) {
"a: $a; b: $b; c: $c"
}
ps> foo 1 2 3
a: 1; b: 2; c: 3
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Which is better, number(x) or parseFloat(x)?
Which is better?
5 Answers
5
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Scala best way of turning a Collection into a Map-by-key?
If I have a collection c of type T and there is a property p on T (of type P , say), what is the best way to do a map-by-extracting-key ?
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