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Can we write our own iterator in Java?
If I have a list containing [alice, bob, abigail, charlie] and I want to write an iterator such that it iterates over elements that begin with 'a', can I write my own ? How can I do that ?
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Tool to read and display Java .class versions
Do any of you know of a tool that will search for .class files and then display their compiled versions?
9 Answers
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Using column alias in WHERE clause of MySQL query produces an error
...an only use column aliases in GROUP BY, ORDER BY, or HAVING clauses.
Standard SQL doesn't allow you to
refer to a column alias in a WHERE
clause. This restriction is imposed
because when the WHERE code is
executed, the column value may not yet
be determined.
Copied from MySQL documen...
What does a double * (splat) operator do
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Ruby 2.0 introduced keyword arguments, and ** acts like *, but for keyword arguments. It returns a Hash with key / value pairs.
For this code:
def foo(a, *b, **c)
[a, b, c]
end
Here's a demo:
> foo 10
=> [10, [], {}]
> foo 10, 20, 30
=> [10, [20...
How do I limit the number of results returned from grep?
...Stop reading a file after NUM matching lines. If the input is
standard input from a regular file, and NUM matching lines are
output, grep ensures that the standard input is positioned to
just after the last matching line before exiting, regardless of
the pres...
PHP 5.4 Call-time pass-by-reference - Easy fix available?
... I had this used in the old code for an object called event (&$event), and had to remove the ampersand for the error message to disappear.
– Natalia
Nov 16 '13 at 17:21
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Simple way to repeat a String in java
...te this using a for loop, but I wish to avoid for loops whenever necessary and a simple direct method should exist somewhere.
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How to save an image to localStorage and display it on the next page?
... needs this problem solved:
Firstly, I grab my image with getElementByID, and save the image as a Base64. Then I save the Base64 string as my localStorage value.
bannerImage = document.getElementById('bannerImg');
imgData = getBase64Image(bannerImage);
localStorage.setItem("imgData", imgData);
H...
Twitter Bootstrap Button Text Word Wrap
...t;/a>
https://getbootstrap.com/docs/4.4/utilities/text/#text-wrapping-and-overflow
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Why is JsonRequestBehavior needed?
...rgument, you should take that time to consider what data you are exposing, and how sensitive it is.
– danludwig
Dec 11 '11 at 14:42
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