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Polymorphism in C++

...tand polymorphism - as the term is used in Computing Science - it helps to start from a simple test for and definition of it. Consider: Type1 x; Type2 y; f(x); f(y); Here, f() is to perform some operation and is being given values x and y as inputs. To exhibit polymorphism, ...
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How do I size a UITextView to its content?

...just displaying it will always show the full text and when editing it will start with the full text and as you add further text will remain the same size with the earlier text scrolling off the top – SimonTheDiver Dec 18 '15 at 10:57 ...
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How to really read text file from classpath in Java

... You mixed relative and absolute paths up. A path that starts with "/" is absolute (i.e. starts from whatever is listed in CLASSPATH). All other paths are relative to the package of the class on which you call getResourceAsStream() – Aaron Digulla ...
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How to determine the current shell I'm working on

...-purposes 100%: ps -ef | egrep "^\s*\d+\s+$$\s+". The ^ makes sure we're starting from the beginning of the line, the \d+ eats up the UID, the $$ matches the PID, and the \s* and \s+ account for & ensure whitespace between the other parts. – Slipp D. Thompson ...
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SQL Server: Filter output of sp_who2

... '' ), LastBatch = COALESCE ( r.start_time, s.last_request_start_time ), ProgramName = COALESCE ( s.program_name, '' ) FROM sys.dm_exec_sessions s LEFT OUTER JOIN sys.dm_exec_requests ...
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How do you get a list of the names of all files present in a directory in Node.js?

... is there a quick way to ignore certain dirs? I want to ignore directories starting with .git – j_d May 3 '16 at 12:14  |  show 3 more comment...
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How to show the “Are you sure you want to navigate away from this page?” when changes committed?

Here in stackoverflow, if you started to make changes then you attempt to navigate away from the page, a javascript confirm button shows up and asks: "Are you sure you want to navigate away from this page?" blee blah bloo... ...
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How to fix: “No suitable driver found for jdbc:mysql://localhost/dbname” error when using pools? [du

...Class.forName("...") parameter. Class.forName not required with JDBC v.4 Starting with Java 6, Class.forName("something.jdbc.driver.YourFubarDriver") is not necessary anymore if you use a recent (JDBC v.4) driver. For details read this: http://onjava.com/pub/a/onjava/2006/08/02/jjdbc-4-enhancemen...
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How to change language of app when user selects language?

...tent refresh = new Intent(this, AndroidLocalize.class); finish(); startActivity(refresh); } Make sure you imported following packages: import java.util.Locale; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.content.res.Configura...
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Why are global variables evil? [closed]

... into your python's packages directory you'll find that most modules there start with a bunch of global declarations. Obviously, people have no problem with them. Specifically to python, globals' visibility is limited to a module, therefore there are no "true" globals that affect the whole program ...