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What does this symbol mean in IntelliJ? (red circle on bottom-left corner of file name, with 'J' in
Under the target folder in IntelliJ for a Java project I created, I have a few java source files in the package. Beside each file the 'J' icon has a red circle with a line through it.
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What is std::promise?
... mostly orthogonal, which makes the first sentence a bit confusing. Do you mean to say that the sharing of the state is between the future and the promise? If so, please say that explicitly from the outset.
– einpoklum
Mar 28 '19 at 12:09
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What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
...ystem links to return a path which the file system considers the canonical means to reference the file system object to which it points.
Also, each of these has a File equivalent which returns the corresponding File object.
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Why should I not wrap every block in “try”-“catch”?
...can throw an exception then it is reckless not to protect this call with a meaningful try block.
16 Answers
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MySQL Error 1093 - Can't specify target table for update in FROM clause
...n case certain operations are carried out, merging cannot happen. E.g. provide the derived dummy table with a LIMIT (to inifity) and the error will never occur. That's pretty hackish though and there is still the risk that future versions of MySQL will support merging queries with LIMIT after all.
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Switching the order of block elements with CSS [duplicate]
...ly need to support a single modern browser: Mobile Safari.
See: http://jsfiddle.net/thirtydot/hLUHL/
You can remove the -moz- prefixed properties if you like, I just left them in for future readers.
#blockContainer {
display: -webkit-box;
display: -moz-box;
disp...
Is it possible to use raw SQL within a Spring Repository
...me = "USER_INFO_TEST")
public class UserInfoTest {
private int id;
private String name;
private String rollNo;
public UserInfoTest() {
}
public UserInfoTest(int id, String name) {
this.id = id;
this.name = name;
}
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PostgreSQL delete with inner join
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DELETE
FROM m_productprice B
USING m_product C
WHERE B.m_product_id = C.m_product_id AND
C.upc = '7094' AND
B.m_pricelist_version_id='1000020';
or
DELETE
FROM m_productprice
WHERE m_pricelist_version_id='1000020' AND
m_product_id IN (SELECT m_product...
How to make layout with View fill the remaining space?
...veLayout.
I am giving my layout for clarity:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<Button
android:layout_width = "80dp"
android:layout_weight = "0"
and...
What is the _snowman param in Ruby on Rails 3 forms for?
...ç, common in names), Internet Explorer will encode them in Latin-1.
This means that if a user searches for "Ché Guevara", it will come through incorrectly on the server-side. In Ruby 1.9, this will result in an encoding error when the text inevitably makes its way into the regular expression engi...