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Implementation difference between Aggregation and Composition in Java
... performs its functions through an Engine, but the Engine is not always an internal part of the Car. Engines may be swapped, or even completely removed. Not only that, but the outside world can still have a reference to the Engine, and tinker with it regardless of whether it's in the Car.
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Sort array of objects by single key with date value
...current updated_at in ISO format. We use new Data(iso_string).getTime() to convert ISO time to Unix timestamp. A Unix timestamp is a number that we can do simple math on. We subtract the first and second timestamp the result is; if the first timestamp is bigger than the second the return number will...
How do you rotate a two dimensional array?
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Here it is in C#
int[,] array = new int[4,4] {
{ 1,2,3,4 },
{ 5,6,7,8 },
{ 9,0,1,2 },
{ 3,4,5,6 }
};
int[,] rotated = RotateMatrix(array, 4);
static int[,] RotateMatrix(int[,] matrix, int n) {
int[,] ret = new int[n, n];...
Why aren't pointers initialized with NULL by default?
Can someone please explain why pointers aren't initialized to NULL ?
Example:
15 Answers
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Hibernate error - QuerySyntaxException: users is not mapped [from users]
...--------------------------------------------------------------
private int id;
private String name;
//~ --- [METHODS] --------------------------------------------------------------------------------------------------
@Override
public boolean equals(final Object o) {
...
Verifying a specific parameter with Moq
... is to use a callback on the Setup call to store the value that was passed into the mocked method, and then write standard Assert methods to validate it. For example:
// Arrange
MyObject saveObject;
mock.Setup(c => c.Method(It.IsAny<int>(), It.IsAny<MyObject>()))
.Callback<...
Where to put the doxygen comment blocks for an internal library - in H or in CPP files? [closed]
...ments in front of methods.
That is the best way to make sure things are maintained. It also keeps your header files relatively lean and avoids the touching issue of people updating method docs causing headers to be dirty and triggering rebuilds. I have actually known people use that as an excuse fo...
ViewPager PagerAdapter not updating the View
...ficient.
Override getItemPosition in your PagerAdapter like this:
public int getItemPosition(Object object) {
return POSITION_NONE;
}
This way, when you call notifyDataSetChanged(), the view pager will remove all views and reload them all. As so the reload effect is obtained.
The second opt...
Number of occurrences of a character in a string [duplicate]
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You could do this:
int count = test.Split('&').Length - 1;
Or with LINQ:
test.Count(x => x == '&');
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What's “requestCode” used for on PendingIntent?
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requestCode is used to retrieve the same pending intent instance later on (for cancelling, etc).
Yes, my guess is the alarms will override each other. I would keep the request codes unique.
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