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How do you find the sum of all the numbers in an array in Java?
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In java-8 you can use streams:
int[] a = {10,20,30,40,50};
int sum = IntStream.of(a).sum();
System.out.println("The sum is " + sum);
Output:
The sum is 150.
It's in the package java.util.stream
import java.util.stream.*;
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How to tell if rails is in production?
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edited Dec 28 '09 at 4:40
answered Dec 28 '09 at 3:09
Da...
List comprehension: Returning two (or more) items for each item
...er=20)
2.69210777094
3.13900787874
1.62461071932
25.5944058287
29.2623711793
25.7211849286
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clear javascript console in Google Chrome
...ion".
– beatgammit
Apr 24 '14 at 21:40
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Keyboard shortcut to comment lines in Sublime Text 3
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answered Jul 19 '13 at 15:40
dusandusan
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Making Maven run all tests, even when some fail
...in the pom file?
– BluE
Jul 9 at 15:40
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Tree data structure in C#
... Traverse(kid, visitor);
}
}
Simple recursive implementation...
< 40 lines of code...
You just need to keep a reference to the root of the tree outside of the class,
or wrap it in another class, maybe rename to TreeNode??
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How can I negate the return-value of a process?
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answered Dec 14 '08 at 23:40
Jonathan LefflerJonathan Leffler
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Rails: How to get the model class name based on the controller class name?
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40
If your controller and model are in the same namespace, then what you want is
controller_path....
Determine if an HTML element's content overflows
...yle.overflow = curOverflow;
return isOverflowing;
}
Tested in FF3, FF40.0.2, IE6, Chrome 0.2.149.30.
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