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How to remove duplicate white spaces in string using Java?
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Like this:
yourString = yourString.replaceAll("\\s+", " ");
For example
System.out.println("lorem ipsum dolor \n sit.".replaceAll("\\s+", " "));
outputs
lorem ipsum dolor sit.
What does that \s+ mean?
\s+ is a regular expression. \s matches a space, tab...
Calling a JavaScript function named in a variable [duplicate]
...s objects, so they can be properties of an object (in which case they are called methods) or even elements of arrays.
If you aren't choosing the object a function belongs to, it belongs to the global scope. In the browser, that means you're hanging it on the object named "window," which is where glo...
Preventing an image from being draggable or selectable without using JS
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Worked on all browsers.
– Milad Abooali
Aug 21 '15 at 3:16
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What happens if I define a 0-size array in C/C++?
Just curious, what actually happens if I define a zero-length array int array[0]; in code? GCC doesn't complain at all.
7...
Get nested JSON object with GSON using retrofit
I'm consuming an API from my android app, and all the JSON responses are like this:
12 Answers
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How do I modify fields inside the new PostgreSQL JSON datatype?
...a":[null,{"b":[1,2,3]}]}'
For inserting into JSON array (while preserving all of the original values), the jsonb_insert() function can be used (in 9.6+; this function only, in this section):
SELECT jsonb_insert('{"a":[null,{"b":[1]}]}', '{a,1,b,0}', jsonb '2')
-- will yield jsonb '{"a":[null,{"b":[...
insert multiple rows via a php array into mysql
...like you might be running into string-handling problems in PHP, which is really an algorithm problem, not a language one. Basically, when working with large strings, you want to minimize unnecessary copying. Primarily, this means you want to avoid concatenation. The fastest and most memory efficient...
How do I declare a namespace in JavaScript?
... This does not create a closure for your code - it makes it tedious to call your other functions because they always have to look like: yourNamespace.bar(); I made an open source project JUST to address this design problem: github.com/mckoss/namespace.
– mckoss
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throw checked Exceptions from mocks with Mockito
...xception extends Exception {
// this is a checked exception
}
interface Foo {
Bar frob() throws BarException
}
it's legal to write:
Foo foo = mock(Foo.class);
when(foo.frob()).thenThrow(BarException.class)
However, if you throw a checked exception not declared in the method signature, e.g....
How to horizontally center a
... solid red;
width:100%
}
<div id="outer">
<div id="inner">Foo foo</div>
</div>
EDIT
With flex-box, it is very easy to style the div horizontally and vertically centered.
#inner {
border: 1px solid black;
}
#outer {
border: 1px solid red;
width:100%
disp...