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Java generics - why is “extends T” allowed but not “implements T”?
... 'super' - that is, is this class to operate with assignable to that other one (extends), or is this class assignable from that one (super).
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How to set Oracle's Java as the default Java in Ubuntu?
...ttention to the asterisk before the numbers on the left and if the correct one is not set choose the correct one by typing the number of it and pressing enter.
now test your java:
$ java -version
if you get something like the following, you are good to go:
java version "1.8.0_05"
Java(TM) SE Run...
Delete element in a slice
...lly, when defining a function it puts all the arguments that you pass into one slice of that type. By doing that, you can pass as many arguments as you want (for example, fmt.Println can take as many arguments as you want).
Now, when calling a function, ... does the opposite: it unpacks a slice and...
Your branch is ahead of 'origin/master' by 3 commits
...s like:
In a good workflow your remote copy of master should be the good one while your local copy of master is just a copy of the one in remote. Using this workflow you'll never get this message again.
If you work in another way and your local changes should be pushed
then just git push origin as...
Understanding MongoDB BSON Document size limit
...xt/36
If your blog post is that long with
that many comments, I for one am not
going to read it :)
For trackbacks, if you dedicated 1MB
to them, you could easily have more
than 10k (probably closer to 20k)
So except for truly bizarre
situations, it'll work great. And in
th...
Difference between Hashing a Password and Encrypting it
...
Hashing is a one way function (well, a mapping). It's irreversible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding a differ...
How to elegantly check if a number is within a range?
... I think this is the most solid solution but not that elegantly the questioner looking for, isn't ?
– Kevin Simple
May 27 '15 at 4:40
...
How do I log a Python error with debug information?
...e error message.
For example:
import logging
try:
1/0
except ZeroDivisionError:
logging.exception("message")
Output:
ERROR:root:message
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
ZeroDivisionError: integer division or modulo by zero
@Paulo Cheque n...
Storing money in a decimal column - what precision and scale?
I'm using a decimal column to store money values on a database, and today I was wondering what precision and scale to use.
...
How to find unused/dead code in java projects [closed]
... the methods could only log their first use. I dont know how this is best done in Java. We have done this in Smalltalk, which is a dynamic language and thus allows for code modification at runtime. We instrument all methods with a logging call and uninstall the logging code after a method has been l...