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What does the `#` operator mean in Scala?
...4c8
scala> a2.f(new a1.B)
<console>:11: error: type mismatch;
found : a1.B
required: a2.B
a2.f(new a1.B)
^
When you declare a class inside another class in Scala, you are saying that each instance of that class has such a subclass. In other words, the...
How to convert java.sql.timestamp to LocalDate (java8) java.time?
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You can do:
timeStamp.toLocalDateTime().toLocalDate();
Note that timestamp.toLocalDateTime() will use the Clock.systemDefaultZone() time zone to make the conversion. This may or may not be what you want.
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【解决】scrapyd启动job时报错：exceptions.TypeError: __init__() got an ...
【解决】scrapyd启动job时报错：exceptions.TypeError: __init__() got an unexpected keyword argument '_job'进入项目spiders目录, 修改 spider py 文件（你自己的spider的主文件）：def __init__(self):改为：def __init__(self, *args, **kwargs):最后不要忘了重新部署一...
Removing duplicate rows in vi?
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this hightlights all the duplicate lines for me but doesn't delete, am I missing a step here?
– ak85
Sep 14 '12 at 23:57
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Async call with await in HttpClient never returns
...tro application on the Win8 CP; this call simply hits a web service and returns JSON data.
3 Answers
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Ruby max integer
I need to be able to determine a systems maximum integer in Ruby. Anybody know how, or if it's possible?
6 Answers
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How can I iterate through the unicode codepoints of a Java String?
So I know about String#codePointAt(int) , but it's indexed by the char offset, not by the codepoint offset.
4 Answers
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How do I get the resource id of an image if I know its name?
How do I get the resource id of an image if I know its name (in Android)?
5 Answers
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Label points in geom_point
The data I'm playing with comes from the internet source listed below
3 Answers
3
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How can I detect if this dictionary key exists in C#?
...ices Managed API, with contact data. I have the following code, which is functional , but not ideal:
5 Answers
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