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How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...hip. OS's (especially UNIX) by design allow a child process to inherit all File-descriptors (FD) from parents. Thus all the sockets (in UNIX like OS are also part of FD) that a process A listening to, can be listened by many more processes A1, A2, .. as long as they are related by parent-child relat...
How to set OnClickListener on a RadioButton in Android?
...otlinx.android.synthetic.main.your_layout_name.* in your activity's Kotlin file. Also note that in case the radioGroup lambda parameter is unused, it can be replaced with _ (an underscore) since Kotlin 1.1.
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Difference of Maven JAXB plugins
...here a way to deal with duplicate element definitions across multiple .xsd files in JAXB?.
I now have granular control over each incoming XSD and corresponding java package; here is a sample configuration close to the one I am using.
<plugin>
<groupId>org.apache.cxf</groupId>...
Java: How to Indent XML Generated by Transformer
...h(65);
format.setIndenting(true);
format.setIndent(2);
Writer outxml = new FileWriter(new File("out.xml"));
XMLSerializer serializer = new XMLSerializer(outxml, format);
serializer.serialize(document);
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How to use multiple @RequestMapping annotations in spring?
...<mvc:view-controller path="/" view-name="welcome"/>
in your config file. That will forward all requests to the Root to the welcome view.
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How to write trycatch in R
...ion
Processed URL: xxxxx
Some other message at the end
Warning message:
In file(con, "r") : cannot open file 'xxxxx': No such file or directory
Investigating the output
> head(y[[1]])
[1] "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">"
[2] "<html><head&...
How do I set up NSZombieEnabled in Xcode 4?
...more convenient:
Click the "Run Button Dropdown"
From the list choose Profile
The program "Instruments" should open where you can also choose Zombies
Now you can interact with your app and try to cause the error
As soon as the error happens you should get a hint on when your object was released an...
Is either GET or POST more secure than the other?
...s no added security.
Post data does not show up in the history and/or log files but if the data should be kept secure, you need SSL.
Otherwise, anybody sniffing the wire can read your data anyway.
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Add padding on view programmatically
...
If you store the padding in resource files, you can simply call
int padding = getResources().getDimensionPixelOffset(R.dimen.padding);
It does the conversion for you.
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multiple packages in context:component-scan, spring config
How can I add multiple packages in spring-servlet.xml file in context:component-scan element?
8 Answers
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