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How to print a float with 2 decimal places in Java?
...ces (.2) in decimal representation of a floating-point number (f) from the start of the format specifier (%).
There are other conversion characters you can use besides f:
d: decimal integer
o: octal integer
e: floating-point in scientific notation
...
Can I grep only the first n lines of a file?
...would be better to use FNR, because if you use awk with multiple files FNR starts from 0 for each file.
– Vladyslav Savchenko
Oct 4 '16 at 9:09
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C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]
...ive the DateTime? a default value of null, and if it is set to null at the start of your function, then you can initialize it to any value you want.
static void test(DateTime? dt = null)
{
if (dt == null)
{
dt = new DateTime(1981, 03, 01);
}
//...
}
You can call it with a...
How to remove a project (from the workspace) in PHPStorm?
...ject under Finder. This folder is hidden by default (i:e that's because it starts with a dot "." ). You will need to enable "View Hidden Files/Folders" in Finder
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What do < and > stand for?
...HTML.
HTML is a mark up language: The < and > are used to denote the starting and ending of different elements: e.g. <h1> and not for the displaying of the greater than or less than symbols. But what if you wanted to actually display those symbols? You would simply use &lt; and &...
How to get the current loop index when using Iterator?
...ator to iterate through the Collection. If the Collection is not a List to start with use Arrays.asList(Collection.toArray()) to turn it into a List first.
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Strip spaces/tabs/newlines - python
... a single
separator, and the result will contain no empty strings at the start
or end if the string has leading or trailing whitespace.
Demo:
>>> myString.split()
['I', 'want', 'to', 'Remove', 'all', 'white', 'spaces,', 'new', 'lines', 'and', 'tabs']
Use str.join on the returned li...
Reducing the space between sections of the UITableView
...
Because the serving of the UITableViewDelegate does only make an effect starting from floats greater than zero.
-(CGFloat)tableView:(UITableView*)tableView heightForHeaderInSection:(NSInteger)section
{
return 1.0;
}
-(CGFloat)tableView:(UITableView*)tableView heightForFooterInSection:(NSIn...
How to create query parameters in Javascript?
...o be extending Object.prototype to break it, which is a pretty bad idea to start with.
– Shog9
Sep 21 '08 at 19:57
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