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Java 8 NullPointerException in Collectors.toMap
...esult, thus the lambda for your case would be () -> new TreeMap<>(String.CASE_INSENSITIVE_ORDER) to create a case insensitive String keyed TreeMap.
– Brett Ryan
Oct 19 '15 at 12:58
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How to know user has clicked “X” or the “Close” button?
...te void Form1_FormClosing(object sender, FormClosingEventArgs e) {
if (string.Equals((sender as Button).Name, @"CloseButton"))
// Do something proper to CloseButton.
else
// Then assume that X has been clicked and act accordingly.
}
Otherwise, I have never ever needed to di...
How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
...y key in the dictionary (check here for a solution for this case). Numbers/strings are safe.
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Creating an object: with or without `new` [duplicate]
...eletes a char array that it did not new. In fact, nothing newd the C-style string; it came from a string literal. deleteing that is an error (albeit one that will not generate a compilation error, but instead unpredictable behaviour at runtime).
Usually an object should not have the responsibility ...
Finding child element of parent pure javascript
... document.querySelectorAll('.parent .child1');
The difference between qS and qSA is that the latter returns all elements matching the selector, while the former only returns the first such element.
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Delegates in swift?
...e:class {
func myVCDidFinish(_ controller: FooTwoViewController, text: String)
}
Step2: Declare the delegate in the sending class (i.e. UIViewcontroller)
class FooTwoViewController: UIViewController {
weak var delegate: FooTwoViewControllerDelegate?
[snip...]
}
Step3: Use the dele...
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...gle command for which the manual states:
command must be either a command string that is completely parsable by the server (i.e., it contains no psql-specific features), or a single backslash command. Thus you cannot mix SQL and psql meta-commands within a -c option.
Workaround from within Postgre...
How to template If-Else structures in data-bound views?
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There are a couple different ways that you can handle this type of code.
with an if/ifnot combination like you are now. This works fine and is not terribly verbose.
Michael Best's switch/case binding (https://github.com/mbest/knockout-switch-case) is quite flexible and ...
Turning Sonar off for certain code
...uppressFBWarnings (added to avoid clashes with java.lang.SuppressWarnings) and also ignores it.
– Marcel Stör
Jul 17 '13 at 6:39
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Android: How to change CheckBox size?
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You just need to set the related drawables and set them in the checkbox:
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="new checkbox"
android:background="@drawable/my_checkbox_background"
and...