[Java] Sum of array elements?

[Internet]

Is there a java function that sums up all of the elements of an array? because i don't want to have to write out a loop to count it or do array[1] + array[2] etc......

[_bobcat_ Veteran]

No idea, check the API

http://java.sun.com/j2se/1.5.0/docs/api/

A loop would take two minutes to write though..

[The2]

Yes. It's called

for (int i=0; i < arr.length; i++)

sum+=arr;

[abshack]

Yes. It's called

for (int i=0; i < arr.length; i++)

sum+=arr;

+1.

[tiagosilva29]

int sum = 0;
for (int i : array) {
 sum += i;
}

[Andre S. Veteran]

AFAIK there is none, and it would be normal because the java array is designed to hold any kind of object, not just integers or types that can be summed together. If you really need a sum() method for your arrays, just create your own Array class by extending the Java Array class.

[loople]

Or use C# Framework 3.5 and just use partial methods to extend the actual arraylist class! (This saves you referencing a user defined class everywhere) C# FTW! ;)