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How do I determine if a port is open on a Windows server? [closed]

...e default option 'telnet' is not recognized as an internal or external command, operable program or batch file. To solve this, just enable it: Click *Start** → Control Panel → Programs → Turn Windows Features on or off. In the list, scroll down and select Telnet Client and click OK. ...
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Java JTable setting Column Width

...n is null. This means that resizing has taken place "outside" the JTable and the change - or "delta" - should be distributed to all of the columns regardless of this JTable's automatic resize mode. This might be why AUTO_RESIZE_LAST_COLUMN didn't help you. Note: When a JTable makes adjust...
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How to determine if a string is a number with C++?

... Also doesn't handle negative numbers and non-whole numbers. We can't know what the requirements are based on the question. – Brennan Vincent Jan 11 '11 at 6:24 ...
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Stop pip from failing on single package when installing with requirements.txt

...sed '/^\s*$/d' | xargs -n 1 pip install to remove anything in the comments and get rid of empty lines. – Narek Apr 17 '18 at 20:47 ...
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`require': no such file to load — mkmf (LoadError)

... @lamplightdev Didnt work for me, ruby version was 1.9.3 and it was installing 1.8 If I tried to install ruby-dev – Karthik T Sep 5 '13 at 0:12 1 ...
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Best way to do multi-row insert in Oracle?

... In Oracle, to insert multiple rows into table t with columns col1, col2 and col3 you can use the following syntax: INSERT ALL INTO t (col1, col2, col3) VALUES ('val1_1', 'val1_2', 'val1_3') INTO t (col1, col2, col3) VALUES ('val2_1', 'val2_2', 'val2_3') INTO t (col1, col2, col3) VALUES ...
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How to detect if multiple keys are pressed at once using JavaScript?

I'm trying to develop a JavaScript game engine and I've came across this problem: 13 Answers ...
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How to retrieve the first word of the output of a command in bash?

I have a command, for example: echo "word1 word2" . I want to put a pipe ( | ) and get word1 from the command. 12 Answers ...
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What are all the valid self-closing elements in XHTML (as implemented by the major browsers)?

...nly) browsers to accept XHTML 1.0 documents by following the guidelines, and serving them as text/html. Therefore, documents served as text/html should be treated as HTML and not as XHTML. It's a very common pitfall, because W3C Validator largely ignores that rule, but browsers follow it relig...
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Find method references in Xcode

..."Callers" submenu for a list of all methods that call the selected method, and click any of them to jump to that file and method. In pictures... A couple of notes: You can do this for properties too. Note that when you select a calling method from the Callers menu to jump to where your meth...