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Adding up BigDecimals using Streams
...ded a totalMapper variable, that has a function from Invoice to BigDecimal and returns the total price of that invoice.
Then I obtain a Stream<Invoice>, map it to a Stream<BigDecimal> and then reduce it to a BigDecimal.
Now, from an OOP design point I would advice you to also actually ...
Python function as a function argument?
...
Here's another way using *args (and also optionally), **kwargs:
def a(x, y):
print x, y
def b(other, function, *args, **kwargs):
function(*args, **kwargs)
print other
b('world', a, 'hello', 'dude')
Output
hello dude
world
Note that function, *...
HTML5 doctype putting IE9 into quirks mode?
I'm trying to get IE9 to load my page with IE9 standards...
5 Answers
5
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Why can't I declare static methods in an interface?
... difference between
public interface Foo {
public static int bar();
}
and
public interface Foo {
public static int bar() {
...
}
}
The first is impossible for the reasons that Espo mentions: you don't know which implementing class is the correct definition.
Java could allow the latt...
How to save MailMessage object to disk as *.eml or *.msg file
...er, true);
}
}
}
You can then take the stream thats returned and do as you want with it, including saving to another location on disk or storing in a database field, or even emailing as an attachment.
share
...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
...pedef :ed primitive data types is to abstract the low-level representation and make it easier to comprehend ( uint64_t instead of long long type, which is 8 bytes).
...
LINQ Join with Multiple Conditions in On Clause
... That seems like a non obvious way to do that. I'm not sure I would understand what it's suppose to do.
– svick
Oct 5 '11 at 16:52
1
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Python pandas: fill a dataframe row by row
The simple task of adding a row to a pandas.DataFrame object seems to be hard to accomplish. There are 3 stackoverflow questions relating to this, none of which give a working answer.
...
SQL selecting rows by most recent date
Using the following query and results, I'm looking for the most recent entry where the ChargeId and ChargeType are unique.
...
How to escape a pipe char in a code statement in a markdown table?
... | r
------------|-----
`a += x;` | r1
a &#124;= y; | r2
and produces the following output
Alternatively, you can replace the backticks (`) with a <code></code> markup which fixes the issues more nicely by preserving the rendering
a | r
------------|---...