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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 raise a ValueError?
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178
raise ValueError('could not find %c in %s' % (ch,str))
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What does a b prefix before a python string mean?
...s added, here is a link to old bogus reference docs.python.org/release/2.6.8/reference/…
– kriss
Jun 20 '12 at 8:38
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Convert object to JSON in Android
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281
Most people are using gson : check this
Gson gson = new Gson();
String json = gson.toJson(myOb...
Fastest way to convert Image to Byte array
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Jon SkeetJon Skeet
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Conditional HTML Attributes using Razor MVC3
... AaronLS
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answered Nov 9 '11 at 21:08
Erik PorterErik Porter
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Should I use #define, enum or const?
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88
Combine the strategies to reduce the disadvantages of a single approach. I work in embedded sys...
Static function variables in Swift
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158
I don't think Swift supports static variable without having it attached to a class/struct. Try d...
Random strings in Python
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edited Sep 4 '17 at 18:15
answered Jan 8 '10 at 19:19
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How to switch position of two items in a Python list?
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edited Aug 1 at 8:21
Tiago Martins Peres 李大仁
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