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Reusing a PreparedStatement multiple times
...h better way is to execute them in batches:
public void executeBatch(List<Entity> entities) throws SQLException {
try (
Connection connection = dataSource.getConnection();
PreparedStatement statement = connection.prepareStatement(SQL);
) {
for (Entity entity :...
Getting thread id of current method call
...%@", [NSThread currentThread]]; int threadNum = -1; sscanf(s.UTF8String, "<NSThread: 0x%*12[0-9a-f]>{number = %d", &threadNum);
– Hari Karam Singh
Oct 17 '17 at 11:47
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How can I plot with 2 different y-axes?
.... Here is an example using a little bit of made-up data:
set.seed(101)
x <- 1:10
y <- rnorm(10)
## second data set on a very different scale
z <- runif(10, min=1000, max=10000)
par(mar = c(5, 4, 4, 4) + 0.3) # Leave space for z axis
plot(x, y) # first plot
par(new = TRUE)
plot(x, z, type...
Java 8 method references: provide a Supplier capable of supplying a parameterized result
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i am getting error " The method orElseThrow(Supplier<? extends X>) in the type Optional<QueryEntities> is not applicable for the arguments (() -> {}) "
– BdEngineer
Jun 11 '19 at 7:16
...
Viewing all `git diffs` with vimdiff
... here is what I ended up using:
git config --global alias.d difftool -x <tool name>
In my case, I set <tool name> to nvim -d and invoke the diff command with
git d <file>
share
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How to delete an item in a list if it exists?
...te duck-typing for people not familiar with the concept).
If you expect multiple occurrences of thing:
while True:
try:
some_list.remove(thing)
except ValueError:
break
a little verbose for this specific use case, but very idiomatic in Python.
this performs better than #...
How to center a WPF app on screen?
...
The default is Manual. Ref: msdn.microsoft.com/en-us/library/…
– CJBS
Sep 21 '17 at 18:08
add a comment
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Difference between C++03 throw() specifier C++11 noexcept
...and the function may throw.
Thus, you can do something like this:
struct<typename T>
{
void CreateOtherClass() { T t{}; }
};
Does CreateOtherClass throw exceptions? It might, if T's default constructor can. How do we tell? Like this:
struct<typename T>
{
void CreateOtherClass() ...
How to check if a file exists in a folder?
...lder. You might want to use DirectoryInfo.GetFiles() and enumerate the result.
– ogborstad
Feb 10 '15 at 8:50
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Determine if an HTML element's content overflows
... el.style.overflow = "hidden";
var isOverflowing = el.clientWidth < el.scrollWidth
|| el.clientHeight < el.scrollHeight;
el.style.overflow = curOverflow;
return isOverflowing;
}
Tested in FF3, FF40.0.2, IE6, Chrome 0.2.149.30.
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