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Does JSON syntax allow duplicate keys in an object?
...s report the last name/value pair
only. Other implementations report an error or fail to parse the
object, and some implementations report all of the name/value pairs,
including duplicates.
Also, as Serguei pointed out in the comments: ECMA-262 "ECMAScript® Language Specification", rea...
Using the “final” modifier whenever applicable in Java [closed]
...oo.txt");
else
System.out.println("test failed");
in.read(); // Compiler error because variable 'in' might be unassigned
By preventing a variable from being assigned more than once, you discourage overbroad scoping. Instead of this:
String msg = null;
for(int i = 0; i < 10; i++) {
msg...
Rails 3 - can't install pg gem
...
As stated in your error log you need to pass in the path to the pg_config. Try to install the gem using:
gem install pg -- --with-pg-config= 'PATH_TO_YOUR_PG_CONFIG'
If you are not sure where your pg_config is, and assuming you are on Linux...
Mockito match any class argument
...o just extends BaseMatcher<T>. Just FYI, if anyone else gets compile errors, try that out.
– Jan
Jul 26 '17 at 21:09
...
Can someone explain Microsoft Unity?
...>(); and you didn't Configure the SomeConcreteClass? Would you get and error in that case?
– RayLoveless
Jun 7 '13 at 21:50
...
What does the [Flags] Enum Attribute mean in C#?
...say ThirtySecond = 2147483648 for an int type enum, the compiler throws an error.
– aaaantoine
Jun 3 '14 at 20:58
...
How to schedule a periodic task in Java?
...sk process
} catch (Exception ex) {
System.out.println("error running thread " + ex.getMessage());
}
}
}
then in main class you instantiate the task and run it periodically started by a specified date:
public void runTask() {
Calendar calendar = Calendar.ge...
How to serve an image using nodejs
...xt and images
serves index.html as a default directory index
responds with error codes for missing files
no path traversal vulnerabilities
no race conditions while reading files
I tested every version on Node versions 4, 5, 6 and 7.
express.static
This version uses the express.static built-in mi...
addEventListener vs onclick
...onevent property back to its initial state (i.e. null).
Doesn't respond to errors appropriately. For example, if you by mistake assign a string to window.onload, for example: window.onload = "test";, it won't throw any errors. Your code wouldn't work and it would be really hard to find out why. .add...
What is the difference between an int and an Integer in Java and C#?
...mitive. So:
String s = i.toString();//will not work!!!
would produce an error, because int is not an object.
int is one of the few primitives in Java (along with char and some others). I'm not 100% sure, but I'm thinking that the Integer object more or less just has an int property and a whole b...