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When to use PNG or JPG in iPhone development?
... decoding the image. You may need to decrease the quality of your JPG's in order to see a real benefit in file size but then you are displaying non-optimal images.
File size is certainly a factor but there are other considerations at play as well when choosing an image format.
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Foreign key constraint may cause cycles or multiple cascade paths?
...n then your trigger code will define which tables are deleted and in which order.
– onedaywhen
Aug 5 '14 at 15:22
6
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Using openssl to get the certificate from a server
...osts on a single IP address) you will need to send the correct hostname in order to get the right certificate.
openssl s_client -showcerts -servername www.example.com -connect www.example.com:443 </dev/null
Without SNI
If the remote server is not using SNI, then you can skip -servername param...
What's the difference between and in servlet
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A field initializer cannot reference the nonstatic field, method, or property
...ion", the following: The variable initializers are executed in the textual order in which they appear in the class declaration. This is even repeated in "10.11.2 Instance variable initializers" where they say: The variable initializers are executed in the textual order in which they appear in the cl...
How do I convert Long to byte[] and back in java
... doing cross-language or cross-platform, then sending the bytes in a known order is important. This method does that (it writes them "high byte first") according to the docs. The accepted answer does not (it writes them in the "current order" according to the docs). The question states that he wa...
Difference between partition key, composite key and clustering key in Cassandra?
...tition key columns, then you can add optionally each clustering key in the order they're set.
so the valid queries are (excluding secondary indexes)
col1 and col2
col1 and col2 and col10
col1 and col2 and col10 and col 4
Invalid:
col1 and col2 and col4
anything that does not contain both col1...
JSON left out Infinity and NaN; JSON status in ECMAScript?
...other thing */}
I know in Java you can override serialization methods in order to implement such a thing. Not sure where your serializing from, so I can't give details on how to implement it in the serialization methods.
s...
What are bitwise shift (bit-shift) operators and how do they work?
...substitute shifts for multiplications when possible. What? Bitshifts are orders of magnitude faster when it comes down to the low level operations of a CPU, a good optimizing compiler would do the exact opposite, that is, turning ordinary multiplications by powers of two into bit shifts.
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How to add lines to end of file on Linux
...o abc >> def' will 'sudo abc' and then '>> def' the output. In order to sudo the entire 'abc >> def' bit, you must do something like this: sudo sh -c "echo 'VNCSERVERS=\"1:root\"' >> /etc/sysconfig/configfile" (note that the inner double-quotes must be escaped)
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