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In C#, why is String a reference type that behaves like a value type?

... Not only strings are immutable reference types. Multi-cast delegates too. That is why it is safe to write protected void OnMyEventHandler() { delegate handler = this.MyEventHandler; if (null != handler) { handler(this, new EventArgs()); } } I suppo...
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How do I configure a Python interpreter in IntelliJ IDEA with the PyCharm plugin?

... to File > Project Structure. Under the Project menu for Project SDK, select "New" and Select "Python SDK", then select "Local". Provided you have a Python SDK installed, the flow should be natural from there - navigate to the location your Python installation lives. ...
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How to delete selected text in the vi editor

I am using PuTTY and the vi editor. If I select five lines using my mouse and I want to delete those lines, how can I do that? ...
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How to search a string in multiple files and return the names of files in Powershell?

...location of the files that contain your pattern: Get-ChildItem -Recurse | Select-String "dummy" -List | Select Path share | improve this answer | follow | ...
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In JPA 2, using a CriteriaQuery, how to count results

...iaBuilder(); CriteriaQuery<Long> cq = qb.createQuery(Long.class); cq.select(qb.count(cq.from(MyEntity.class))); cq.where(/*your stuff*/); return entityManager.createQuery(cq).getSingleResult(); Obviously you will want to build up your expression with whatever restrictions and groupings etc y...
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Pipe to/from the clipboard in Bash script

...lets you talk to it. In the case of X, there's xclip (and others). xclip -selection c will send data to the clipboard that works with Ctrl + C, Ctrl + V in most applications. If you're on Mac OS X, there's pbcopy. e.g cat example.txt | pbcopy If you're in Linux terminal mode (no X) then look into...
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What is the instanceof operator in JavaScript?

...ript, esp. for some who are used to a language that requires e.g. explicit casting to alter a variable type. As you pointed out, it's very easy to change the type from e.g. primitive int to primitive string. – moey Oct 18 '12 at 23:51 ...
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Get the IP address of the machine

...ing ioctl's! However, your handling of IP6 is still incorrect - you should cast to sockaddr_in6, i.e. something like tmpAddrPtr=&((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; – Andrey Oct 14 '11 at 10:04 ...
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How to remove the default arrow icon from a dropdown list (select element)?

I want to remove the dropdown arrow from a HTML <select> element. For example: 12 Answers ...
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View's SELECT contains a subquery in the FROM clause

... As per documentation: MySQL Docs The SELECT statement cannot contain a subquery in the FROM clause. Your workaround would be to create a view for each of your subqueries. Then access those views from within your view view_credit_status ...