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What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
What is the difference between CrudRepository and JpaRepository interfaces in Spring Data JPA ?
6 Answers
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How to force ViewPager to re-instantiate its items [duplicate]
...hat they are no longer valid or needs to be refreshed? I tried to call notifyDataSetChanged() on its adapter but this does not invoke instantiateItem() method again.
...
Python setup.py develop vs install
...stall (typically third party) packages that you're not going to develop/modify/debug yourself.
For your own stuff, you want to first install your package and then be able to frequently edit the code without having to re-install the package every time — and that is exactly what python setup.py dev...
View inside ScrollView doesn't take all place
...nt when using a ScrollView. After all, the ScrollView would become useless if its content was always as tall as itself. To work around this, you need to use the ScrollView attribute called android:fillViewport. When set to true, this attribute causes the scroll view’s child to expand to the height...
What does void* mean and how to use it?
...t.
void * is often used in places where you need to be able to work with different pointer types in the same code. One commonly cited example is the library function qsort:
void qsort(void *base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *));
base is the addr...
What does `void 0` mean? [duplicate]
...ndefined
What's the point of that?
It seems pretty useless, doesn't it? If it always returns undefined, what's wrong with just using undefined itself?
In a perfect world we would be able to safely just use undefined: it's much simpler and easier to understand than void 0. But in case you've neve...
Write to .txt file?
...
FILE *f = fopen("file.txt", "w");
if (f == NULL)
{
printf("Error opening file!\n");
exit(1);
}
/* print some text */
const char *text = "Write this to the file";
fprintf(f, "Some text: %s\n", text);
/* print integers and floats */
int i = 1;
float p...
What's Go's equivalent of argv[0]?
...guments are exposed in the os package http://golang.org/pkg/os/#Variables
If you're going to do argument handling, the flag package http://golang.org/pkg/flag is the preferred way. Specifically for your case flag.Usage
Update for the example you gave:
func usage() {
fmt.Fprintf(os.Stderr, "us...
Static classes and methods in coffeescript
...Box2DUtility.drawWorld()
Demo: http://jsfiddle.net/ambiguous/5yPh7/
And if you want your drawWorld to act like a constructor then you can say new @ like this:
class Box2DUtility
constructor: (s) -> @s = s
m: () -> alert "instance method called: #{@s}"
@drawWorld: (s) -> new @ s
B...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
...st took the source code from b93 and put it in a "util" class. I had to modify it slightly to work with the current API.
For reference here's the working code (take it at your own risk...):
public static<A, B, C> Stream<C> zip(Stream<? extends A> a,
...