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Calculate size of Object in Java [duplicate]
...nonexistant in Java. I tried recording the free memory in the JVM with Runtime.getRuntime().freeMemory() before and after creating the object and then recording the difference, but it would only give 0 or 131304, and nothing in between, regardless of the number of elements in the structure. Help p...
Getting reference to the top-most view/window in iOS application
...? Thanks! (Note: (null) returned both at viewDidLoad and viewWillAppear: time. viewDidAppear: is too late.
– Olie
Feb 26 '15 at 18:29
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Postgresql: password authentication failed for user “postgres”
...rked before. But now authentication is failed. I did it before a couple of times without this problem. What should I do? And what happens?
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Rails - controller action name to string
I have a Rails question.
6 Answers
6
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How is a non-breaking space represented in a JavaScript string?
This apparently is not working:
4 Answers
4
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Not equal != operator on NULL
...OT returning a value (true/1) is counter intuitive and catches me out from time to time! I'd have thought "some value compared to no value" would always be "not equal", but maybe that's just me?!?
– DarthPablo
Jun 23 '14 at 14:56
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WordPress asking for my FTP credentials to install plugins
...tem_method. Wordpress tries to create a file 'wp-content/temp-write-test-'.time(). If this fails it assumes that you can only use FTP. But this might not be true, if wp-content itself is not writable, but for example wp-content/plugins is. Then, forcing FS_METHOD works.
– Sebas...
Setting the default Java character encoding
...he file.encoding property has to be specified as the JVM starts up; by the time your main method is entered, the character encoding used by String.getBytes() and the default constructors of InputStreamReader and OutputStreamWriter has been permanently cached.
As Edward Grech points out, in a specia...
What is the best way to check for Internet connectivity using .NET?
...
String host = "google.com";
byte[] buffer = new byte[32];
int timeout = 1000;
PingOptions pingOptions = new PingOptions();
PingReply reply = myPing.Send(host, timeout, buffer, pingOptions);
return (reply.Status == IPStatus.Success);
}
catch (Exception) {
return false;
}
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How can I pass a member function where a free function is expected?
The question is the following: consider this piece of code:
9 Answers
9
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