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Group a list of objects by an attribute : Java
I need to group a list of objects(Student) using an attribute(Location) of the particular object, the code is like below,
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How do I calculate someone's age in Java?
I want to return an age in years as an int in a Java method.
What I have now is the following where getBirthDate() returns a Date object (with the birth date ;-)):
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How to make an ImageView with rounded corners?
In Android, an ImageView is a rectangle by default. How can I make it a rounded rectangle (clip off all 4 corners of my Bitmap to be rounded rectangles) in the ImageView?
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PostgreSQL: Which Datatype should be used for Currency?
Seems like Money type is discouraged as described here
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What is the easiest way to initialize a std::vector with hardcoded elements?
I can create an array and initialize it like this:
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Is there a way to access an iteration-counter in Java's for-each loop?
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How do I convert an enum to a list in C#? [duplicate]
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Git diff to show only lines that have been modified
When I do a git diff, it shows lines that have been added:
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How to store date/time and timestamps in UTC time zone with JPA and Hibernate
How can I configure JPA/Hibernate to store a date/time in the database as UTC (GMT) time zone? Consider this annotated JPA entity:
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What is a word boundary in regex?
...Java regexes in Java 1.6 (to parse numeric output, among other purposes) and cannot find a precise definition of \b ("word boundary"). I had assumed that -12 would be an "integer word" (matched by \b\-?\d+\b ) but it appears that this does not work. I'd be grateful to know of ways of matching...