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Difference between java.util.Random and java.security.SecureRandom
...nclusion
Replace your current code. Use SecureRandom exclusively. Then at least you will have a little guarantee that the result will be hard to predict. If you want the properties of a cryptographically secure PRNG (in your case, that's what you want), then you have to go with SecureRandom only. B...
CORS Access-Control-Allow-Headers wildcard being ignored?
... @monsur: this answer pointed out that wildcards are allowed now, at least in theory, so I updated your answer to reflect this. If you don't like my style, feel free to edit to your taste.
– MvG
Sep 6 '16 at 14:53
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How to find serial number of Android device?
...vices, but I was able to verify that as of the beginning of April 2011, at least, it's still quite easy to find devices that have the broken ANDROID_ID.
Based on Google's recommendations, I implemented a class that will generate a unique UUID for each device, using ANDROID_ID as the seed where app...
Default implementation for Object.GetHashCode()
...lly fine. If writing a struct, it is more common to override equality (not least to avoid boxing), but it is very rare you write a struct anyway!
When overriding equality, you should always have a matching Equals() and GetHashCode() (i.e. for two values, if Equals() returns true they must return th...
How to delete an SMS from the inbox in Android programmatically?
...ersation, but for our purposes, it's a sufficient compromise as we will at least know all messages will be looked at and verified. Our flow will probably need to then listen for the message, capture for the message we want, do a query to get the thread_id of the recently inbounded message and do th...
Authoritative position of duplicate HTTP GET query keys
... order when I tested that), PHP will give you always the last and Java (at least the system I worked with based on Java) always the first value. stackoverflow.com/questions/1809494/…
– SimonSimCity
Mar 8 '12 at 7:33
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R memory management / cannot allocate vector of size n Mb
...tion from re-loading/re-computing the variables passed to the loop, but at least you can get around the memory issue.
– Benjamin
Mar 4 '16 at 20:50
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List comprehension with if statement
... outputlist.append(y)
but a list comprehension must start with at least one outer loop.
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Implementing Comments and Likes in database
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Because I need to implement it by myself. At least for now... and, I thought that maybe it is a good occasion to start liking a databases a little bit ;) Thank you about your suggestion with stored procedure. Do someone know, if they are mapped by Django ORM automatical...
Oracle SQL Query for listing all Schemas in a DB
...n where people only want to call something a schema if it actually owns at least one object so that the hundreds of user accounts that will never own any objects are excluded. In that case
SELECT username
FROM dba_users u
WHERE EXISTS (
SELECT 1
FROM dba_objects o
WHERE o.owner =...