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What is Double Brace initialization in Java?
...onymous class derived from the specified class (the outer braces), and provides an initialiser block within that class (the inner braces). e.g.
new ArrayList<Integer>() {{
add(1);
add(2);
}};
Note that an effect of using this double brace initialisation is that you're creating anonymo...
List files in local git repo?
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This Git command makes a much cleaner output and is ideal if you just want the list of files tracked by Git.
– mico
Feb 27 '16 at 12:00
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What does “@private” mean in Objective-C?
... to clarify, methods are always public in Objective-C. There are ways of "hiding" method declarations, though—see this question for more information.
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Multiple select statements in Single query
...ve tables. An alternate method may be as follows:
SELECT COUNT(user_table.id) AS TableCount,'user_table' AS TableSource FROM user_table
UNION SELECT COUNT(cat_table.id) AS TableCount,'cat_table' AS TableSource FROM cat_table
UNION SELECT COUNT(course_table.id) AS TableCount, 'course_table' AS Table...
HTML/Javascript change div content
..., you can just use the element's innerHTML property.
document.getElementById("content").innerHTML = "whatever";
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Deleting a Google App Engine application
...ine SDK 1.2.6 it's possible to delete apps completely. But beware, the app-id won't be usable again.
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Javascript/jQuery: Set Values (Selection) in a multiple Select
...lue='" + e + "']").prop("selected", true);
});
Working Example http://jsfiddle.net/McddQ/1/
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Difference between Node object and Element object?
...lly confused between Node object and Element object.
document.getElementById() returns Element object while document.getElementsByClassName()
returns NodeList object(Collection of Elements or Nodes?)
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Swapping column values in MySQL
...work:
UPDATE swap_test s1, swap_test s2 SET s1.x=s1.y, s1.y=s2.x WHERE s1.id=s2.id;
Essentially, the 1st table is the one getting updated and the 2nd one is used to pull the old data from.
Note that this approach requires a primary key to be present.
This is my test schema:
CREATE TABLE `swap_t...
Aligning a float:left div to center?
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you may need to add vertical-align:middle while using display:inline-block.
– ibsenv
May 24 '15 at 10:59
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