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Value of i for (i == -i && i != 0) to return true in Java
...ava)?
That's off-topic for Stack Exchange. But you could do it starting from the definition of Java integers (JLS 4.2)
"The integral types are byte, short, int, and long, whose values are 8-bit, 16-bit, 32-bit and 64-bit signed two's-complement integers ..."
and
"The values of the integ...
Is Java “pass-by-reference” or “pass-by-value”?
... a new object of type Foo with an attribute "f".
Foo f = new Foo("f");
From the method side, a reference of type Foo with a name a is declared and it's initially assigned null.
public static void changeReference(Foo a)
As you call the method changeReference, the reference a will be assigned ...
Visual studio compiles fine but still shows red lines
...
I know this is old but in case people find this thread like I did from google. I had this problem after resolving some conflicts from svn. The solution has several projects in it and I resolved some conflicts in a few different projects. I did a Build -> Clean Solution followed by a Bu...
How can I get my Twitter Bootstrap buttons to right align?
...nk this is better than pull-right because it prevents the vertical content from collapsing on top of each other and avoids having to add more mark-up just to workaround that.
– Tony Wall
Jul 28 '15 at 7:48
...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...he constructor invocation as any other method call.
One can track the data from the native address.It is possible to retrieve an
object’s memory address using the java.lang.Unsafe class, and operate on its fields directly via unsafe get/put methods!
Compile time optimizations for JVM. HIgh perform...
JavaScript equivalent of jQuery's extend method
...extend method to fill in a new object, settings with any default values from the default object if they weren't specified in the config object:
...
Entity Framework DateTime and UTC
...; set; }
}
With this in place, whenever Entity Framework loads an entity from the database, it will set the DateTimeKind that you specify, such as UTC.
Note that this doesn't do anything when saving. You'll still have to have the value properly converted to UTC before you try to save it. But it...
Ball to Ball Collision - Detection and Handling
...e collision components by creating a unit vector pointing in the direction from one ball to the other, then taking the dot product with the velocity vectors of the balls. You can then plug these components into a 1D perfectly elastic collision equation.
Wikipedia has a pretty good summary of the w...
What are the differences between struct and class in C++?
...uced to be exactly like a struct, but private by default.
If C++ had come from scratch, with no history, then it would probably have only one such keyword. It also probably wouldn't have made the impact it made.
In general, people will tend to use struct when they are doing something like how stru...
How do you make a deep copy of an object?
...or problems, and its use is discouraged in most cases. Please see Item 11, from "Effective Java" by Joshua Bloch for a complete answer. I believe you can safely use Object.clone() on primitive type arrays, but apart from that you need to be judicious about properly using and overriding clone.
The ...