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How do I determine if a port is open on a Windows server? [closed]
...Programs → Turn Windows Features on or off. In the list, scroll down and select Telnet Client and click OK.
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Closing Database Connections in Java
...ent statement = connection.createStatement()) {
String sqlToExecute = "SELECT * FROM persons";
try (ResultSet resultSet = statement.execute(sqlToExecute)) {
if (resultSet.next()) {
System.out.println(resultSet.getString("name");
}
}
} catch (SQLException e) {
...
How to match “anything up until this sequence of characters” in a regular expression?
...
I have noticed that this fails to select anything if the pattern your looking for does not exist, instead if you use ^(?:(?!abc)(?!def).)* you can chain to exclude patterns you don't want and it will still grab everything as needed even if the pattern does no...
Difference between map and collect in Ruby?
..., in C# (3.0)'s LINQ library, it is provided as an extension method called Select. Map is also a frequently used operation in high level languages such as Perl, Python and Ruby; the operation is called map in all three of these languages. A collect alias for map is also provided in Ruby (from Smallt...
Filtering collections in C#
... where p.Gender == "M" && p.Age < 30
select new { p.Name, p.Age })
Console.WriteLine(v.Name + " is " + v.Age);
}
private class Person
{
public Person() { }
public int Age { get; set; }
public string Name { get; set; }
public string Gende...
How can I extract embedded fonts from a PDF as valid font files?
...or FontForge:
Use the "Open Font" dialogbox used when opening files.
Then select "Extract from PDF" in the filter section of dialog.
Select the PDF file with the font to be extracted.
A "Pick a font" dialogbox opens -- select here which font to open.
Check the FontForge manual. You may need to fol...
Change bundle identifier in Xcode when submitting my first app in IOS
...e project editor.
To set the bundle ID prefix
In the project navigator, select the project and your target to
display the project editor.
Click General and, if necessary, click the disclosure triangle next
to Identity to reveal the settings.
Enter the bundle ID prefix in the “Bundle Identi...
How to use JNDI DataSource provided by Tomcat in Spring?
..."7200000"
testOnBorrow="true"
validationQuery="select 1"
/>
</GlobalNamingResources>
And reference the JNDI resource from Tomcat's web context.xml like this:
<ResourceLink name="jdbc/DatabaseName"
global="jdbc/DatabaseName"
type="javax...
Undo working copy modifications of one file in Git?
...s, a commit can have more than one previous commit, so with HEAD^ a number selects which of those parents, while with HEAD~ a number always selects the first parent but that number of commits back. See git help rev-parse for more details.
– Brian Campbell
May 1...
How to close TCP and UDP ports via windows command line
...don't think that was being asked here. I believe the question is "how do I selectively close one active connection (socket) to the port my program is listening on?". The wording of the question is a bit off because a port number for the undesired inbound client connection is given and it was referr...