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round up to 2 decimal places in java? [duplicate]
...ne works...
double roundOff = Math.round(a * 100.0) / 100.0;
Output is
123.14
Or as @Rufein said
double roundOff = (double) Math.round(a * 100) / 100;
this will do it for you as well.
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What is the advantage of using Restangular over ngResource?
...g about them.
Suppose that you have something like this for cars : /users/123/cars/456
In $resource, You'd have to construct that URL manually and you'd also have to construct the $resource object for this manually. Restangular helps you in this by "remembering" the URLs.
So if you do in some pla...
Struggling with NSNumberFormatter in Swift for currency
...e on how to use it on Swift 3.
( Edit: Works in Swift 4 too )
let price = 123.436 as NSNumber
let formatter = NumberFormatter()
formatter.numberStyle = .currency
// formatter.locale = NSLocale.currentLocale() // This is the default
// In Swift 4, this ^ has been renamed to simply NSLocale.current
...
How can I parse a time string containing milliseconds in it with python?
...ou're using 2.6 or 3.0, you can do this:
time.strptime('30/03/09 16:31:32.123', '%d/%m/%y %H:%M:%S.%f')
Edit: I never really work with the time module, so I didn't notice this at first, but it appears that time.struct_time doesn't actually store milliseconds/microseconds. You may be better off u...
Zero-pad digits in string
...so use string value of the number for better performance.
$number = strval(123);
Tested on PHP 7.4
str_repeat: 0.086055040359497 (number: 123, padding: 1)
str_repeat: 0.085798978805542 (number: 123, padding: 3)
str_repeat: 0.085641145706177 (number: 123, padding: 10)
str_repeat: 0.09130501747...
How can I pass a constant value for 1 binding in multi-binding?
...>
<TextBlock.Resources>
<sys:Int32 x:Key="fixedValue">123</sys:Int32>
</TextBlock.Resources>
<TextBlock.Text>
<MultiBinding Converter="{StaticResource myConverter}">
<Binding Path="myFirst.Value" />
<Binding Source="{StaticRes...
How to convert a char array to a string?
...e we will lose some data. The possible solution is:
cout << string("123\0 123") << endl;
cout << string("123\0 123", 8) << endl;
Output is:
123
123 123
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impr...
parseInt vs unary plus, when to use which?
... '~~x',
'x>>>0',
'isNaN(x)'
];
VALUES = [
'"123"',
'"+123"',
'"-123"',
'"123.45"',
'"-123.45"',
'"12e5"',
'"12e-5"',
'"0123"',
'"0000123"',
'"0b111"',
'"0o10"',
'"0xBABE"',
'"4294967295"',
'"1...
An example of how to use getopts in bash
...pecify strength, either 45 or 90.
h | *) # Display help.
$ ./foo.sh -s 123 -p any_string
Strength needs to be either 45 or 90, 123 found instead.
p is any_string
$ ./foo.sh -s 90 -p any_string
Strength is 90.
p is any_string
See: Small getopts tutorial at Bash Hackers Wiki
...
Ruby, remove last N characters from a string?
...diomatic (and I'd argue, even more readable than other answers here):
'abc123'.delete_suffix('123') # => "abc"
'abc123'.delete_suffix!('123') # => "abc"
It's even significantly faster (almost 40% with the bang method) than the top answer. Here's the result of the same benchmark:
...