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What is object serialization?
...t serialized.
Here is a very basic sample with comments to facilitate its reading:
import java.io.*;
import java.util.*;
// This class implements "Serializable" to let the system know
// it's ok to do it. You as programmer are aware of that.
public class SerializationSample implements Serializabl...
How to create a MySQL hierarchical recursive query
...here a condition is put to only include records for which the parent was already identified as being in the descendant tree (all descendants of the primary parent are progressively added to @pv).
The conditions in this where clause are evaluated in order, and the evaluation is interrupted once the t...
How do I look inside a Python object?
...
First, read the source.
Second, use the dir() function.
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The case against checked exceptions
...elopers so against checked exceptions? I have had numerous conversations, read things on blogs, read what Bruce Eckel had to say (the first person I saw speak out against them).
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JavaScript ternary operator example with functions
... It's a great way to reduce four lines of code into one without impacting readability. The only word of advice I would give you is to avoid nesting multiple ternary statements on the same line (that way lies madness!)
shar...
How to calculate time elapsed in bash script?
...hus, you can just set SECONDS to 0 before starting the timed event, simply read SECONDS after the event, and do the time arithmetic before displaying.
SECONDS=0
# do some work
duration=$SECONDS
echo "$(($duration / 60)) minutes and $(($duration % 60)) seconds elapsed."
As this solution doesn't de...
Hidden Features of SQL Server
... extras:
MultipleActiveResultSets=true;
This makes ADO.Net 2.0 and above read multiple, forward-only, read-only results sets on a single database connection, which can improve performance if you're doing a lot of reading. You can turn it on even if you're doing a mix of query types.
Application N...
Installing vim with ruby support (+ruby)
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@MartinMacak you could try reading output of configure. it should give some kind of clues. but it's quite tricky. having hard time to get python enabled myself.
– Arnis Lapsa
Feb 10 '13 at 14:38
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Simple basic explanation of a Distributed Hash Table (DHT)
...ing, and some claim to O(1)-hop routing at the cost of more maintenance.
Read the wikipedia page, and if you really want to know in a bit of depth, check out this coursepage at Harvard which has a pretty comprehensive reading list.
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What exactly does stringstream do?
...stream, so it is not a burden to learn.
Stringstreams can be used to both read strings and write data into strings. It mainly functions with a string buffer, but without a real I/O channel.
The basic member functions of stringstream class are
str(), which returns the contents of its buffer in s...