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Why doesn't Java allow to throw a checked exception from static initialization block?
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Because it is not possible to handle these checked exceptions in your source. You do not have any control over the initialization process and static{} blocks cannot be called from your source so that you could surround them with try-catch.
Because you can...
How is pattern matching in Scala implemented at the bytecode level?
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case Sum(l,r) // instance of check followed by fetching the two arguments and assigning to two variables l and r but see below about custom extractors
case "hello" // equality check
case _ : Foo // instance of check
case x => // assignment to a fresh variable
case _ => // do nothing, this is...
Pandas get topmost n records within each group
Suppose I have pandas DataFrame like this:
3 Answers
3
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Set TextView text from html-formatted string resource in XML
...native that's not documented (I tripped over it after searching for hours, and finally found it in the bug list for the Android SDK itself). You CAN include raw HTML in strings.xml, as long as you wrap it in
<![CDATA[ ...raw html... ]]>
Example:
<string name="nice_html">
<![CDATA...
What's the difference between `1L` and `1`?
... (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
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Flattening a shallow list in Python [duplicate]
...be the best way to flatten a shallow list like this, balancing performance and readability?
23 Answers
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How to create a private class method?
... disgusting it is definitely not.
It makes perfect sense once you understand Ruby's object model and the corresponding method lookup flow, especially when taking into consideration that private is NOT an access/visibility modifier, but actually a method call (with the class as its recipient) as di...
Proper use of 'yield return'
...ld keyword is one of those keywords in C# that continues to mystify me, and I've never been confident that I'm using it correctly.
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Worst security hole you've seen? [closed]
...opping cart. The software properly calculated the total cost as .1 * cost, and the human packing the order simply glossed over the odd "." in front of the quantity to pack :)
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Default string initialization: NULL or Empty? [closed]
... strings to NULL, with the thinking that NULL means the absence of a value and "" or String.Empty is a valid value. I have seen more examples lately of code where String.Empty is considered the default value or represents no value. This strikes me as odd, with the newly added nullable types in c# ...