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How to print formatted BigDecimal values?
I have a BigDecimal field amount which represents money, and I need to print its value in the browser in a format like $123.00 , $15.50 , $0.33 .
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Streaming via RTSP or RTP in HTML5
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Technically 'Yes'
(but not really...)
HTML 5's <video> tag is protocol agnostic—it does not care. You place the protocol in the src attribute as part of the URL. E.g.:
<video src="rtp://myserver.com/path/to/stream">
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How long should SQL email fields be? [duplicate]
I recognize that an email address can basically be indefinitely long so any size I impose on my varchar email address field is going to be arbitrary. However, I was wondering what the "standard" is? How long do you guys make it? (same question for Name field...)
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Immutable class?
...state after it is instantiated.
How to make an object immutable?
In general, an immutable object can be made by defining a class which does not have any of its members exposed, and does not have any setters.
The following class will create an immutable object:
class ImmutableInt {
private fina...
How to parse JSON in Java
I have the following JSON text. How can I parse it to get the values of pageName , pagePic , post_id , etc.?
34 Answers
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How to center an element horizontally and vertically
I am trying to center my tabs content vertically, but when I add the CSS style display:inline-flex , the horizontal text-align disappears.
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add column to mysql table if it does not exist
...e schema, increment the number.
Another solution would be to just try the ALTER TABLE ADD COLUMN command. It should throw an error if the column already exists.
ERROR 1060 (42S21): Duplicate column name 'newcolumnname'
Catch the error and disregard it in your upgrade script.
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Shorten string without cutting words in JavaScript
...g any word off. I know how to use substring, but not indexOf or anything really well.
23 Answers
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How to switch to the new browser window, which opens after click on the button?
..., if that window no more required
driver.close();
// Switch back to original browser (first window)
driver.switchTo().window(winHandleBefore);
// Continue with original browser (first window)
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Converting from longitude\latitude to Cartesian coordinates
...rmula", which may be an acceptable amount of error in your case. You will always have some amount of error unless you're talking about a distance of a few feet and even then there is theoretically curvature of the Earth... If you require more rigidly WGS-84 compatible approach checkout the "Vincen...