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How to sort by two fields in Java?
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Collections.sort is a static method in the native Collections library. It does the actual sorting, you just need to provide a Comparator which defines how two elements in your list should be compared: this is achieved by providing your own implementation of the compare method.
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How to convert int to NSString?
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Primitives can be converted to objects with @() expression. So the shortest way is to transform int to NSNumber and pick up string representation with stringValue method:
NSString *strValue = [@(myInt) stringValue];
or
NSStri...
How to Diff between local uncommitted changes and origin
Let's say I cloned a repository and started modifying files. I know that if I have local uncommitted changes, I can do a diff as follows git diff test.txt and it will show me the difference between the current local HEAD and the modified, uncommitted changes in the file. If I commit those changes ...
Make UINavigationBar transparent
How do you make a UINavigationBar transparent ? Though I want its bar items to remain visible.
18 Answers
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Ordering by specific field value first
I have a table with 3 columns:
8 Answers
8
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Select Last Row in the Table
...d into my table. I know that the method first() exists and provides you with the first file in the table but I don't know how to get the last insert.
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angularJS: How to call child scope function in parent scope
How can call a method defined in child scope from its parent scope?
4 Answers
4
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Sql Server string to date conversion
...7.0) does not have any flexible, or even non-flexible, way of taking an arbitrarily structured datetime in string format and converting it to the datetime data type.
By "arbitrarily", I mean "a form that the person who wrote it, though perhaps not you or I or someone on the other side of the planet...
How to print like printf in Python3?
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edited Feb 12 '18 at 16:42
answered Oct 18 '13 at 19:04
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When splitting an empty string in Python, why does split() return an empty list while split('\n') re
I am using split('\n') to get lines in one string, and found that ''.split() returns an empty list, [] , while ''.split('\n') returns [''] . Is there any specific reason for such a difference?
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