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Find lines from a file which are not present in another file [duplicate]
I have two files (let's say a.txt and b.txt ), both of which has a list of names. I have already run sort on both the files.
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Interface defining a constructor signature?
...n here - specifically to show how you could use an abstract base class in tandem with your existing Interface and maybe cut down on the amount of refactoring needed in the future for similar situations. This concept has already been hinted at in some of the comments but I thought it would be worth ...
Cannot instantiate the type List [duplicate]
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Raw collection types are dangerous and should not be used or suggested for use in any new code targeted for Java 5+, end of story.
– Matt Ball
Oct 31 '11 at 22:15
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
What is meant by String Pool ? And what is the difference between the following declarations:
5 Answers
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How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
...d email. Sometimes it's one or two messages at a time. Sometimes it's thousands of messages.
9 Answers
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What causes a TCP/IP reset (RST) flag to be sent?
...hiccuping every 10 minutes (exactly, within 1-2 seconds). I ran Wireshark and discovered that after 10 minutes of inactivity the other end is sending a packet with the reset (RST) flag set. A google search tells me "the RESET flag signifies that the receiver has become confused and so wants to abor...
print call stack in C or C++
... option. Note that names of "static" functions are not exposed,
and won't be
available in the backtrace.
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How to find my Subversion server version number?
... of the subversion REPOSITORY you can:
Look to the repository on the web and on the bottom of the page it will say something like:
"Powered by Subversion version 1.5.2 (r32768)."
From the command line: <insert curl, grep oneliner here>
If not displayed, view source of the page
<svn ver...
Vim - how to run a command immediately when starting vim?
...o early, check :h startup:
At startup, Vim checks environment variables and files and sets values
accordingly. Vim proceeds in this order:
1. Set the 'shell' and 'term' option *SHELL* *COMSPEC* *TERM*
2. Process the arguments
3. Execute Ex commands, from environment variables and...
Remove all files except some from a directory
...y:
find . -type f -not -name '*txt' -print0 | xargs -0 rm --
The print0 and -0 combination is needed if there are spaces in any of the filenames that should be deleted.
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