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What are the differences between poll and select?
I am referring to the POSIX standard select and poll system C API calls.
3 Answers
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How to serialize an object into a string
...s pretty straighforward with JDBC.
The problem with the second code you posted is the encoding. You should additionally encode the bytes to make sure none of them fails.
If you still want to write it down into a String you can encode the bytes using java.util.Base64.
Still you should use CLOB ...
Encrypt Password in Configuration Files? [closed]
...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 getting a key from javax.crypto.SecretKeyFactory with the "PBKDF...
Android Calling JavaScript functions in WebView
...stead loadUrl to call the javascript functions like below
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
webView.evaluateJavascript("enable();", null);
} else {
webView.loadUrl("javascript:enable();");
}
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How to print colored text in Python?
... the output to a file; while tools like cat may support colors, it is generally better to not print color information to files.
– Sebastian Mach
Apr 9 '14 at 6:27
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UIActionSheet cancel button strange behaviour
...s bug some more, and it seems to be an issue with the tabbar.
If you call UIActionSheet's [sheet showInView:self.view] from a view controller that is a child of a UITabViewController, then the hit testing on the cancel button fails in that portion of the UIActionSheet that lies above the tabbar...
How can I convert NSDictionary to NSData and vice versa?
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This is a very elegant solution for most Mac OS developers.
– mjl007
Mar 27 '18 at 23:31
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iOS Image Orientation has Strange Behavior
...erty. If the metadata specifies the orientation of the image which is generally ignored by other OS but Mac. Most of images taken are having their meta data property set to right angle. So Mac shows it 90 degree rotated manner. You can see the same image in proper way in windows OS.
For more detail...
How to make git ignore changes in case?
...t too sure what is going on here, but sometimes a particular file in my repository will change the case of it's name. e.g.,:
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How do I skip a match when using Ctrl+D for multiple selections in Sublime Text 2?
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It's not actually Ctrl+K+D, It's Ctrl+K, Ctrl+D. Much easier to type them in series rather than parallel!
– Tim Keating
May 14 '13 at 15:52
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