Given a non-nullint[], return the sum of the first 2 elements in the array.
If the array length is less than 2, just sum up the elements that exist.
Return 0 if the array is length 0.
For this problem we're expecting only a method.
Don't define a class, include modifiers like static or public, add import statements, or add code outside the method declaration.
intsum2(int[] values) {
return0; // You may need to remove this starter code