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How should I use try-with-resources with JDBC?
...don't have to refer to a separate method:
public List<User> getUser(int userId) {
String sql = "SELECT id, username FROM users WHERE id = ?";
List<User> users = new ArrayList<>();
try (Connection con = DriverManager.getConnection(myConnectionURL);
PreparedStat...
How to use SharedPreferences in Android to store, fetch and edit values [closed]
...nces gives me the following error: The method getSharedPreferences(String, int) is undefined for the type MyActivity
– Si8
Jul 29 '13 at 19:14
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Evenly distributing n points on a sphere
...han Euclidean distances. But maybe I can answer a simple question, if one converts the points on the sphere to their Voronoi diagram, one can describe each Voronoi cell as having approximately area 4π/N and one can convert this to a characteristic distance by pretending it's a circle rather than a...
How do I find which program is using port 80 in Windows? [duplicate]
... = $g[2].Value } -PassThru |
Add-Member @{ LocalPort = [int]$g[3].Value } -PassThru |
Add-Member @{ RemoteAddress = $g[4].Value } -PassThru |
Add-Member @{ RemotePort = $g[5].Value } -PassThru |
Add-Member @{ State = $g[6].Value...
How to parse a CSV file in Bash?
...rds"). One approach to making CSV files more amenable to *nix tools is to convert them to TSV (tab-separated values), e.g. using Excel.
– peak
Sep 7 '15 at 3:27
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How to read and write INI file with Python3?
...nfigparser
config = configparser.ConfigParser()
config.read('FILE.INI')
print(config['DEFAULT']['path']) # -> "/path/name/"
config['DEFAULT']['path'] = '/var/shared/' # update
config['DEFAULT']['default_message'] = 'Hey! help me!!' # create
with open('FILE.INI', 'w') as configfile: ...
How do I send an HTML email?
...
For Groovy. Don't forget to convert GString to java.lang.String.
– it3xl
Mar 6 '18 at 8:29
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How to enumerate an enum with String type?
...ase diamonds = "♦"; case clubs = "♣" }
Then the following code will print all possible values:
Suit.allCases.forEach {
print($0.rawValue)
}
Compatibility with earlier Swift versions (3.x and 4.x)
If you need to support Swift 3.x or 4.0, you may mimic the Swift 4.2 implementation by adding...
How to remove from a map while iterating it?
...nalogy, it has always been perfectly legitimate to delete p where p is a pointer-to-constant. Constness does not constrain lifetime; const values in C++ can still stop existing.
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Should I use string.isEmpty() or “”.equals(string)?
...always wondering why others use this so often, but didn't take null values into account. Great :-)
– Peter Wippermann
Dec 2 '10 at 10:51
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