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How to implement the Java comparable interface?
... implement the compareTo(Animal other) method that way you like it.
@Override
public int compareTo(Animal other) {
return Integer.compare(this.year_discovered, other.year_discovered);
}
Using this implementation of compareTo, animals with a higher year_discovered will get ordered higher. I ho...
Scheduling recurring task in Android
...timer.scheduleAtFixedRate(new TimerTask() {
synchronized public void run() {
\\ here your todo;
}
}}, TimeUnit.MINUTES.toMillis(1), TimeUnit.MINUTES.toMillis(1));
Timer has some drawbacks that are solved by ScheduledThreadPoolExecutor. So it's not the best...
How does “304 Not Modified” work exactly?
... @VenomVendor: ETag is just a field where the server can store a unique ID (typically a hash or version number or vector clock). It doesn't help you calculate that ID at all; that's up to your server-side code.
– SLaks
Jan 7 '14 at 18:24
...
How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec
...y how to select multiple columns from a subquery:
SELECT
A.SalesOrderID,
A.OrderDate,
SQ.Max_Foo,
SQ.Max_Foo2
FROM
A
LEFT OUTER JOIN
(
SELECT
B.SalesOrderID,
MAX(B.Foo) AS Max_Foo,
MAX(B.Foo2) AS Max_Foo2
FROM
B
GR...
What does SQL clause “GROUP BY 1” mean?
...
SELECT account_id, open_emp_id
^^^^ ^^^^
1 2
FROM account
GROUP BY 1;
In above query GROUP BY 1 refers to the first column in select statement which is
account_id.
You also can specify in ORDER BY....
setBackground vs setBackgroundDrawable (Android)
...e completeness of it... You'd do something like following:
int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
setBackgroundDrawable();
} else {
setBackground();
}
For this to work you need to set buildTarget api 16 and min build to 7 or so...
Mockito: InvalidUseOfMatchersException
.... and in fact there is : eq
when(recommendedAccessor.searchRecommendedHolidaysProduct(eq(metas), any(List.class), any(HotelsBoardBasisType.class), any(Config.class)))
.thenReturn(recommendedResults);
In this example 'metas' is an existing list of values
...
jQuery .val change doesn't change input value
...ttribute or jQuery's attr you will also affect the DOM element's value: jsfiddle.net/a8SxF/1
– TheZ
Aug 8 '12 at 21:58
...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
...
FYI. Carmack didn't write it. Terje Mathisen and Gary Tarolli both take partial (and very modest) credit for it, as well as crediting some other sources.
How the mythical constant was derived is something of a mystery.
To quote Gary Taro...
How to check if element exists using a lambda expression?
...I have TabPane, and I would like to know if there is element with specific ID in it.
3 Answers
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