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What is the best way to filter a Java Collection?
...dable) way is to iterate it and use Iterator.remove() method:
Iterator<Foo> it = col.iterator();
while( it.hasNext() ) {
Foo foo = it.next();
if( !condition(foo) ) it.remove();
}
Now, to make it more readable, you can wrap it into a utility method. Then invent a IPredicate interface, cr...
Select SQL Server database size
how can i query my sql server to only get the size of database?
10 Answers
10
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How can I remove the extension of a filename in a shell script?
...
You can also use parameter expansion:
$ filename=foo.txt
$ echo "${filename%.*}"
foo
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Set Viewbag before Redirect
Is it possible to set the ViewBag before I call a redirection?
5 Answers
5
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Algorithm to generate a crossword
Given a list of words, how would you go about arranging them into a crossword grid?
13 Answers
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Difference between API and ABI
I am new to linux system programming and I came across API and ABI while reading
Linux System Programming .
9 Answers
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How to use sed/grep to extract text between two words?
...
You can strip strings in Bash alone:
$ foo="Here is a String"
$ foo=${foo##*Here }
$ echo "$foo"
is a String
$ foo=${foo%% String*}
$ echo "$foo"
is a
$
And if you have a GNU grep that includes PCRE, you can use a zero-width assertion:
$ echo "Here is a String"...
Difference between setTimeout with and without quotes and parentheses
...* Look mah! No name! */},2000);
A name of an existing function
function foo(){...}
setTimeout(foo, 2000);
A variable that points to an existing function
var foo = function(){...};
setTimeout(foo, 2000);
Do note that I set "variable in a function" separately from "function name". It's not ap...
What is the difference between __init__ and __call__?
...ialise newly created object, and receives arguments used to do that:
class Foo:
def __init__(self, a, b, c):
# ...
x = Foo(1, 2, 3) # __init__
The second implements function call operator.
class Foo:
def __call__(self, a, b, c):
# ...
x = Foo()
x(1, 2, 3) # __call__
...
When do we need curly braces around shell variables?
...ence. However, the {} in ${} are useful if you want to expand the variable foo in the string
"${foo}bar"
since "$foobar" would instead expand the variable identified by foobar.
Curly braces are also unconditionally required when:
expanding array elements, as in ${array[42]}
using parameter exp...