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Closed 9 years ago.
I am looking for a website where I could practice Java coding assignments that you often get on job interviews. I mean those tasks where you need to calculate primitive numbers, implement some sorting, or do something with an Array, List or a Map. I'm quite experienced java developer, but such tasks can sometimes be tricky :)
Do you know any free websites that could help?
Thanks.
Go to interviewstreet. Companies often use it as first technical screen
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Closed 9 years ago.
Why have Apache commons-math3 based it's Fraction on int type???
Are there any reasons to use int instead of long? Do we have some performance gains here? Aren't longs process at the same speed as ints on modern CPUs?
I think we got only unneeded limitations from this decision.
Please correct me if I am mistaking.
If you want arbitrary precision, use BigFraction. Many platforms -- especially e.g. Android -- have tight memory constraints and may not be as efficient for 64-bit computations. Additionally, any performance improvements to long may not have been available when Fraction was originally written, and for API compatibility, it may not be changeable.
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Closed 11 years ago.
Hi Anyone know good website for learning and updating for Java learning.
Is something like dotnetkicks.com same in Java.
Please let me know.?
http://docs.oracle.com/javase/6/docs/api/
http://docs.oracle.com/javase/7/docs/api/
Well.. in my view SO is best for it.Even you are looking for some bookmarking site.U can check www.javapins.com that is same like dotnetkicks . It a new site for bookmarking.they are doing good. bt need to improve on content side.
other than u can check javaworld.com and many more
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Closed 11 years ago.
Can someone list comprehensive list the pros and cons of using regular expressions in Java programing?
Pro: when regular expressions do what you need.
Con: when they don't.
Other than that, the question as stated is mostly ideological.
Pros:
They are an effective way to match against input.
They are easily configurable and can be separated from code.
Cons:
They be hard to read.
They are not performant. If performance is a concern do not use them.
Pro: It works and it's simple.
Con: There are none.
Why ask? Perhaps you have something more specific you'd like to know?
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Closed 10 years ago.
I need to represent quite some data for which a cube grid would just make perfect sense. Does such a thing exist for Swing?
A "cube grid" looks like this (and it's really darn impressive):
http://www.smartclient.com/smartgwtee/showcase/#cube_analytics
You can try JIDE Pivot table. I think it is pretty close to what you need.
More info at http://www.jidesoft.com/products/pivot.htm
Try out the free and simple Java swing component https://github.com/aristsoft/jpivot to visualize the data in multidimentional view.
It designed just to show the data, so it don't doing the data aggregation any kind itself.
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Closed 10 years ago.
Are there any good books that teach how to make simple physics simulations in Java?
Yes, I recommend you this one: http://www.amazon.com/Physics-Game-Programmers-Grant-Palmer/dp/159059472X
Also you can check a lot of physics for games developed in Java:
http://www.amazon.com/Developing-Games-Java-David-Brackeen/dp/1592730051
http://javapdfbooks.blogspot.com/2009/07/physics-for-game-programmers.html ('free')
Physics for Game Developers (is in C++)
I hope that this helps you!