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Get type of a generic parameter in Java with reflection
... by applying the "anonymous class" trick and the ideas from the Super Type Tokens:
public final class Voodoo {
public static void chill(final List<?> aListWithSomeType) {
// Here I'd like to get the Class-Object 'SpiderMan'
System.out.println(aListWithSomeType.getClass().g...
Better way to check variable for null or empty string?
Since PHP is a dynamic language what's the best way of checking to see if a provided field is empty?
10 Answers
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How to check if an array value exists?
...
You could use the PHP in_array function
if( in_array( "bla" ,$yourarray ) )
{
echo "has bla";
}
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How can I print the contents of a hash in Perl?
I keep printing my hash as # of buckets / # allocated.
How do I print the contents of my hash?
11 Answers
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How do I find which rpm package supplies a file I'm looking for?
...am looking for a mod_files.sh file which presumably would come with the php-devel package. I guessed that yum would install the mod_files.sh file with the php-devel x86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem.
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How to check if an int is a null
...he memory Integer takes more memory than int. But the difference of memory allocation, nothing to be considered.
In this case you must use Inter instead of int
Try below snippet and see example for more info,
Integer id;
String name;
//Refer this example
Integer val = 0;
`
if (val != nul...
How to log in to phpMyAdmin with WAMP, what is the username and password?
What does the word "root" mean in phpMyAdmin ?
6 Answers
6
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Symfony 2 EntityManager injection in service
... tuning would look like this:
1. Use in your services or Controller
<?php
namespace Test\CommonBundle\Services;
use Doctrine\ORM\EntityManagerInterface;
class UserService
{
private $userRepository;
// use custom repository over direct use of EntityManager
// see step 2
publi...
Database Design for Revisions?
...ast seven columns:
Timestamp of the change,
User that made the change,
A token to identify the record that was changed (where the history is maintained separately from the current state),
Whether the change was an insert, update, or delete,
The old value,
The new value,
The delta (for changes to n...
How do you allow spaces to be entered using scanf?
... 1. */
#define MAX_NAME_SZ 256
int main(int argC, char *argV[]) {
/* Allocate memory and check if okay. */
char *name = malloc(MAX_NAME_SZ);
if (name == NULL) {
printf("No memory\n");
return 1;
}
/* Ask user for name. */
printf("What is your name? ");
...