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Why do this() and super() have to be the first statement in a constructor?
...:
public class Foo extends Baz {
private final Bar myBar;
public Foo(String arg1, String arg2) {
// ...
// ... Some other stuff needed to construct a 'Bar'...
// ...
final Bar b = new Bar(arg1, arg2);
super(b.baz()):
myBar = b;
}
}
So basically construct an object b...
How can I reverse a NSArray in Objective-C?
...ne. If I see a method that returns an immutable object, I expect it to actually be returning an immutable object. Having it appear to return an immutable object but actual return a mutable object is a dangerous practice to get into.
– Christine
Jul 2 '12 at 22:...
Formatting NSDate into particular styles for both year, month, day, and hour, minute, seconds
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iPhone format strings are in Unicode format. Behind the link is a table explaining what all the letters above mean so you can build your own.
And of course don't forget to release your date formatters when you're done with them. The abov...
Filtering DataGridView without changing datasource
...ple.
(dataGridViewFields.DataSource as DataTable).DefaultView.RowFilter = string.Format("Field = '{0}'", textBoxFilter.Text);
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How to get just numeric part of CSS property with jQuery?
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This will clean up all non-digits, non-dots, and not-minus-sign from the string:
$(this).css('marginBottom').replace(/[^-\d\.]/g, '');
UPDATED for negative values
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What is the maximum possible length of a query string?
...r Protocol — HTTP/1.1) states there is no limit to the length of a query string (section 3.2.1). RFC 3986 (Uniform Resource Identifier — URI) also states there is no limit, but indicates the hostname is limited to 255 characters because of DNS limitations (section 2.3.3).
While the specificatio...
How to count instances of character in SQL Column
I have an sql column that is a string of 100 'Y' or 'N' characters. For example:
16 Answers
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How do I tell if a regular file does not exist in Bash?
... you are free to edit my post and add it to the list. I guess you mean: -n String - Check if the length of the string isn't zero. Or do you mean file1 -nt file2 - Check if file1 is newer then file 2 (you can also use -ot for older then)
– BlueCacti
May 5 '14 at...
How do you tell if caps lock is on using JavaScript?
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In jQuery,
$('#example').keypress(function(e) {
var s = String.fromCharCode( e.which );
if ( s.toUpperCase() === s && s.toLowerCase() !== s && !e.shiftKey ) {
alert('caps is on');
}
});
Avoid the mistake, like the backspace key, s.toLowerCase() !...
Search and replace a line in a file in Python
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Note that files should be a string containing the file name, not a file object.
– atomh33ls
Aug 30 '13 at 10:00
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