In Scala immutable
TreeSet class, the copyToArray() method is utilized in copying the elements of the TreeSet to an Array.
Method Definition: def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Int
xs: It denotes the array where elements are copied.
start: It denotes the starting index for the copy to takes place. Its default value is 0.
len: It denotes the number of elements to copy. Its default value is the length of the set.
Return Type: It returns the elements of the set to an array.
TreeSet(1, 2, 3, 4, 5) Elements in the array: 1 2 3 4 5
TreeSet(1, 2, 3, 4, 5) Elements in the array: 0 1 2 0 0
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