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Checking for a null int value from a Java ResultSet
...yAppearingStmt.executeQuery(query);
if (rs.next()) {
iVal = rs.getInt("ID_PARENT");
if (rs.wasNull()) {
// handle NULL field value
}
}
(Edited as @martin comments below; the OP code as written would not compile because iVal is not initialised)
...
Rails: Default sort order for a rails model?
...ished => true).
Since Rails 3 you can 'chain' those methods together by concatenating them with periods between them, so with the above scopes you can now use Book.published.confirmed.
With this method, the query is not actually executed until actual results are needed (lazy evaluation), so...
How to linebreak an svg text within javascript?
...rn instruction. dy=1.2em is a relative coordinate: move the text fragment by this amount, relative to the current text fragment. This acts like a line-feed instruction. Combined, you get a CR/LF.
– Sergiu Dumitriu
Jun 28 '16 at 12:00
...
Is it OK to use == on enums in Java?
...
Just my 2 cents: Here is the code for Enum.java, as published by Sun, and part of the JDK:
public abstract class Enum<E extends Enum<E>>
implements Comparable<E>, Serializable {
// [...]
/**
* Returns true if the specified object is equal to this
...
Pull to refresh UITableView without UITableViewController
... The refreshControl appears on top of the tableView. I fixed this by: tableView.insertSubview(refreshControl, atIndex: 0) instead of tableView.addSubview(refreshControl)
– kbpontius
Dec 16 '15 at 16:50
...
How to check if a model has a certain column/attribute?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
adb server version doesn't match this client
...d set your SDK folder
after you configure this, try to restart your adb by going into folder platform-tools which adb placed and do this command:
./adb kill-server
./adb start-server
*tips: You may close the process of Genymotion before running the command above
Hope this help.
...
scp or sftp copy multiple files with single command
...o the remote and parsed there. So we must make sure they are not processed by the local shell. That is why single quotation marks come in. The double quotation marks are used to handle spaces in the file names.
If files are all in the same directory, we can use * to match them all, such as
scp -r ...
Importing CSV with line breaks in Excel 2007
... on XP) can behave differently depending on whether a CSV file is imported by opening it from the File->Open menu or by double-clicking on the file in Explorer.
I have a CSV file that is in UTF-8 encoding and contains newlines in some cells. If I open this file from Excel's File->Open menu, t...
Is there a way to suppress JSHint warning for one given line?
...linted with JSHint.
/* jshint ignore:start */
// Code here will be ignored by JSHint.
/* jshint ignore:end */
// Code here will be linted with JSHint.
You can also ignore a single line with a trailing comment like this:
ignoreThis(); // jshint ignore:line
...