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Difference between wait() and sleep()
... is being waited on whereas a sleep cannot. Also a wait (and notify) must happen in a block synchronized on the monitor object whereas sleep does not:
Object mon = ...;
synchronized (mon) {
mon.wait();
}
At this point the currently executing thread waits and releases the monitor. Another thr...
Why do you have to link the math library in C?
...re than GCC conservatism: "it's always worked like that". I only wish they applied the same reasoning to their compiler extensions.
– anon
Jun 23 '09 at 17:59
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Should I learn C before learning C++? [closed]
...ectory to find it was done in C++ (most of the other projects were Java 3D apps).
14 Answers
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What is the difference between google tag manager and google analytics?
...gets this information from the tags.
Tags for each and every action that happens on the website has a separate tag.
For example, If I wanna play a video on a website, I need to click a button to play a video, that button has a tag.
If I wanna make a purchase or need to submit a review form, I nee...
What's the best practice for primary keys in tables?
... 2005/2008 the natural (text) key can be faster than an int key. I have an app with a 7-8 character friendly code that we use as the primary key and that was faster (and often more convenient) than an int surrogate. We needed the code anyway so that we could have a human readable/memorable code that...
When you exit a C application, is the malloc-ed memory automatically freed?
...Not freeing resources crosses it. The YAGNI principle was also meant to be applied to features, not code that makes the program work correctly. (And not freeing memory is a bug).
– Yacoby
Feb 6 '10 at 15:53
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Is modern C++ becoming more prevalent? [closed]
...windows client to do CRUD on my db. Use C#/.NET or C++/MFC? I want a web app... Use C#/ASP.NET or C++/ISAPI? I want a simple "Nybbles" clone using DirectX C#/.NET or C++/MFC/WTL? I want a winning demo at Assembly09... definitely C++ (vs. C#).
– spoulson
Fe...
Why do you program in assembly? [closed]
...s. That's E=mc2 in action. Here's a summary.
For all of the above, the applications are not designed or written 100% in assembly -- not even close. But when people really need speed, they focus on writing the key parts of their code to fly on specific hardware.
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How to find a Java Memory Leak
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I use following approach to finding memory leaks in Java. I've used jProfiler with great success, but I believe that any specialized tool with graphing capabilities (diffs are easier to analyze in graphical form) will work.
Start the appli...
Can a foreign key be NULL and/or duplicate?
...at record. A separate table can be "ProposalAssignedTo" or some such, with appropriate constraints. A query writer can then join to that table, and supply their own logic for whatever we want to do when a proposal doesn't have a salesperson. NULL doesn't just mean "we don't know" - it can be used fo...