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How to use Class in Java?
There's a good discussion of Generics and what they really do behind the scenes over at this question , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s.
However, what stumps me ...
Extract substring in Bash
Given a filename in the form someletters_12345_moreleters.ext , I want to extract the 5 digits and put them into a variable.
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How to locate a file in Solution Explorer in Visual Studio 2010?
I have a huge solution with multiple projects. Sometime I need to navigate to a file in Solution Explorer . Using the VS 2010 ' Navigate To ' feature I can open any file by name in Visual Studio 2010 but I want to be able to select the file in Solution Explorer as well?
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A non well formed numeric value encountered
... (start and finish) to a PHP script that will add those to a DB. I am having problems validating this. I keep getting the following errors
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How to change the Text color of Menu item in Android?
Can I change the background color of a Menu item in Android?
27 Answers
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Java rounding up to an int using Math.ceil
....90625 , I need to round up, I've looked around and this seems to be the right method.
15 Answers
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How to implement a tree data-structure in Java? [closed]
Is there any standard Java library class to represent a tree in Java?
24 Answers
24
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How do I concatenate two lists in Python?
...ne = [1,2,3]
listtwo = [4,5,6]
joinedlist = listone + listtwo
Output:
>>> joinedlist
[1,2,3,4,5,6]
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Replace all 0 values to NA
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Replacing all zeroes to NA:
df[df == 0] <- NA
Explanation
1. It is not NULL what you should want to replace zeroes with. As it says in ?'NULL',
NULL represents the null object in R
which is unique and, I guess, can be ...
How to get enum value by string or int
How can I get the enum value if I have the enum string or enum int value. eg: If i have an enum as follows:
10 Answers
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