大约有 36,030 项符合查询结果（耗时：0.0382秒） [XML]
Where to get “UTF-8” string literal in Java?
...
do you use .toString() on that?
– Matt Broekhuis
Oct 22 '13 at 17:30
54
...
Cancel split window in Vim
I have split my windows horizontally. Now how can I return to normal mode, i.e. no split window just one window without cancelling all of my open windows. I have 5 and do not want to "quit", just want to get out of split window.
...
Do SVG docs support custom data- attributes?
...for data-*. SVG allows any attribute and tag to be included, as long as it doesn't conflict with existing ones (in other words: you should use namespaces).
To use this (equivalent) mechanism:
use mydata:id instead of data-myid, like this: <p mydata:id="123456">
make sure you define the nam...
Ruby custom error classes: inheritance of the message attribute
...
raise already sets the message so you don't have to pass it to the constructor:
class MyCustomError < StandardError
attr_reader :object
def initialize(object)
@object = object
end
end
begin
raise MyCustomError.new("an object"), "a message"
rescu...
What is the difference between a stored procedure and a view?
...ta were coming from a single table.
A stored procedure uses parameters to do a function... whether it is updating and inserting data, or returning single values or data sets.
Creating Views and Stored Procedures - has some information from Microsoft as to when and why to use each.
Say I have two ...
How to select between brackets (or quotes or …) in Vim?
... y, you can also delete or change text (e.g. ci), di]).
I tried this with double and single-quotes and it appears to work there as well. For your data, I do:
write (*, '(a)') 'Computed solution coefficients:'
Move cursor to the C, then type yi'. Move the cursor to a blank line, hit p, and get
...
Rethrowing exceptions in Java without losing the stack trace
...e. Not so if I replace it with the broader Exception e. How should this be done properly?
– James P.
Oct 31 '11 at 2:07
1
...
How to compare two Dates without the time portion?
...ou use DateTimeComparator.getDateOnlyInstance() it's even simpler :)
// TODO: consider extracting the comparator to a field.
return DateTimeComparator.getDateOnlyInstance().compare(first, second);
("Use Joda Time" is the basis of almost all SO questions which ask about java.util.Date or java.util...
Specifying an Index (Non-Unique Key) Using JPA
How do you define a field, eg email as having an index using JPA annotations. We need a non-unique key on email because there are literally millions of queries on this field per day, and its a bit slow without the key.
...
Can we have functions inside functions in C++?
...int i = 0;
// Captures i by reference; increments it by one
auto addOne = [&] () {
i++;
};
while(i < 10) {
addOne(); //Add 1 to i
std::cout << i << "\n";
}
}
C++98 and C++03 - Not directly, but yes with static functions inside local ...