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Difference between a virtual function and a pure virtual function [duplicate]
...s need to override/implement all inherited pure virtual functions. If they do not, they too will become abstract.
An interesting 'feature' of C++ is that a class can define a pure virtual function that has an implementation.
(What that's good for is debatable.)
Note that C++11 brought a new use...
How can I convert comma separated string into a List
This doesn't work cause the split method returns a string[]
11 Answers
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Encrypt Password in Configuration Files? [closed]
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A simple way of doing this is to use Password Based Encryption in Java. This allows you to encrypt and decrypt a text by using a password.
This basically means initializing a javax.crypto.Cipher with algorithm "AES/CBC/PKCS5Padding" and get...
Unrecognized SSL message, plaintext connection? Exception
..... with https' the browser would have changed to port 443 for you. You can do the same yourself. Indeed HttpURLConnection will automatically do it for you, if you don't specify a port at all.
– Marquis of Lorne
Jun 9 '14 at 23:54
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How to reset Android Studio
...ll gradle files so that it would act like a fresh installation. What steps do I have to follow to achieve this?
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How can I add new keys to a dictionary?
...\value pair on a dictionary by assigning a value
to that key. If the key doesn't exist, it's added and points to that
value. If it exists, the current value it points to is overwritten.
—R. Navega
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Escape double quote character in XML
Is there an escape character for a double quote in xml? I want to write a tag like:
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Convert floating point number to a certain precision, and then copy to string
...value to a string, but only want 135.123456789 . With print, I can easily do this by doing something like:
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Builder Pattern in Effective Java
...here were compilation errors. Following is in essence what I was trying to do:
11 Answers
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How to check if AlarmManager already has an alarm set?
... and running. Results from google seem to indicate that there is no way to do this. Is this still correct? I need to do this check in order to advise the user before any action is taken to create a new alarm.
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