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Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...e with 10 rows based on a primary key combination (column 1 and column 2). Now, you have removed 5 rows from the table at some point of time. Now, if you try to add the same 10 rows again, while hibernate tries to persist the objects in database, 5 rows which were already removed will be added witho...
Extending from two classes
...nterface BarInterface {
public int methodC(int i);
//...
}
And now make Foo and Bar implement the relative interfaces:
public class Foo implements FooInterface { /*...*/ }
public class Bar implements BarInterface { /*...*/ }
Now, with class FooBar, you can implement both FooInterface...
Evenly distributing n points on a sphere
... to N-1). If that is all that is confusing you, hopefully you can use that now.
(in other words, k is an array of size N that is defined before the code fragment starts, and which contains a list of the points).
Alternatively, building on the other answer here (and using Python):
> cat ll.py
f...
How to improve Netbeans performance?
...I disabled the plugins I was not using, a whopping 19 plug ins I disabled. now memory uses down to 400+ MiB and CPU uses down to 10 and at max to 50%.
Now my life is much easier.
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Git workflow and rebase vs merge questions
I've been using Git now for a couple of months on a project with one other developer. I have several years of experience with SVN , so I guess I bring a lot of baggage to the relationship.
...
What is __init__.py for?
...make two blank files, the init.py file (with underscores) and datetime.py. Now open an interpreter, import sys, and issue sys.path.insert(0, '/path/to/datetime'), replacing that path with the path to whatever directory you just made. Now try something like from datetime import datetime;datetime.now(...
How to use a class from one C# project with another C# project
...is select the solution file, right click --> Add --> New Project)
I now have two project in the same solution
Step3:
As Paul Ruane stated. go to references in the solution explorer (if closed it's in the view tab of the compiler). DoubleProjectTwo is the one needing functions/methods of Dou...
Node.js check if file exists
...
Anyone reading this now (Node.js v0.12.x) keep in mind that fs.exists and fs.existsSync have also been deprecated. The best way to check file existence is fs.stat, as demoed above.
– Antrikshy
Mar 29 '15 at...
Is using Random and OrderBy a good shuffle algorithm?
...dex];
elements[swapIndex] = elements[i];
}
}
This will now only do as much work as it needs to.
Note that in both cases, you need to be careful about the instance of Random you use as:
Creating two instances of Random at roughly the same time will yield the same sequence of ra...
How to 'minify' Javascript code
...e.com, almost everything works on every browser (also ie10 is standardized now) , i think now it's just here to slow down your web application...if you like the $() you should create your own simple function.And why bother to compress your code if your clients need to download the 100kb jquery scrip...