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Why is String.chars() a stream of ints in Java 8?
In Java 8, there is a new method String.chars() which returns a stream of int s ( IntStream ) that represent the character codes. I guess many people would expect a stream of char s here instead. What was the motivation to design the API this way?
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Getting random numbers in Java [duplicate]
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768
The first solution is to use the java.util.Random class:
import java.util.Random;
Random rand ...
How to map and remove nil values in Ruby
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8 Answers
8
Active
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Max parallel http connections in a browser?
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428
Max Number of default simultaneous persistent connections per server/proxy:
Firefox 2: 2
Firef...
Java variable number or arguments for a method
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278
That's correct. You can find more about it in the Oracle guide on varargs.
Here's an example:
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is guava-libraries available in maven repo?
...va/guava
– matt b
Jul 27 '10 at 16:58
6
The guava-io, guava-primitives, etc. subprojects have bee...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
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edited Jan 4 '19 at 12:48
Henrik
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answere...
What is difference between Collection.stream().forEach() and Collection.forEach()?
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edited Jul 18 '17 at 21:29
River
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a...
How to remove all rows in a numpy.ndarray that contain non-numeric values
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>>> a = np.array([[1,2,3], [4,5,np.nan], [7,8,9]])
array([[ 1., 2., 3.],
[ 4., 5., nan],
[ 7., 8., 9.]])
>>> a[~np.isnan(a).any(axis=1)]
array([[ 1., 2., 3.],
[ 7., 8., 9.]])
and reassign this to a.
Explanation: np.is...
Unable to modify ArrayAdapter in ListView: UnsupportedOperationException
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284
I tried it out, myself...Found it didn't work. So i check out the source code of ArrayAdapter a...