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Convert Long into Integer
...store a wider range than an Integer).
Java 8 has a helper method that checks for overflow (you get an exception in that case):
Integer i = theLong == null ? null : Math.toIntExact(theLong);
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Michael BerryMichael Berry
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How to keep one variable constant with other one changing with row in excel
Lets say I have one cell A1, which I want to keep constant in a calculation. For example, I want to calculate a value like this:
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How can I increment a date by one day in Java?
I'm working with a date in this format: yyyy-mm-dd .
28 Answers
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Why is inserting in the middle of a linked list O(1)?
According to the Wikipedia article on linked lists , inserting in the middle of a linked list is considered O(1). I would think it would be O(n). Wouldn't you need to locate the node which could be near the end of the list?
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What is the X-REQUEST-ID http header?
... lot this subject, read various articles about this header, its use in Heroku, and projects based on Django.
4 Answers
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Check if list is empty in C# [closed]
...source is empty. This is an approach in ASP.NET:
<emptydatarowstyle backcolor="LightBlue" forecolor="Red"/>
<emptydatatemplate>
<asp:image id="NoDataErrorImg"
imageurl="~/images/NoDataError.jpg" runat="server"/>
No Data Found!
</emptydatatemplate>
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What are the differences between .gitignore and .gitkeep?
What are the differences between .gitignore and .gitkeep ? Are they the same thing with a different name, or do they both serve a different function?
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How can I have grep not print out 'No such file or directory' errors?
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DogbertDogbert
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Python script to copy text to clipboard [duplicate]
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See Pyperclip. Example (taken from Pyperclip site):
import pyperclip
pyperclip.copy('The text to be copied to the clipboard.')
spam = pyperclip.paste()
Also, see Xerox. But it appears to have more dependencies.
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