Answer:
two
Explanation:
A linked list is a data structure which stores the multiple-element with data type
and a pointer that stores the address of the next element.
A linked list is a series of nodes connecting each other by a pointer.
a node contains data and a pointer.
For build an array, two pointers are used:
the first pointer for specifies the starting node called head node.
and the second pointer is used to connect the other node to build the linked list.
Both are used to build the array if we lose the head node we cannot apply the operation because we do not know the starting node and we cannot traverse the whole linked list.
for example:
1->2->3->4->5
here, 1 is the head node and -> denote the link which makes by the second pointer.
import math
def getResults(r):
return "Volume = {}\nSurface Area = {}".format(round((4/3)*math.pi*(r**3),1), round((4*math.pi)*(r**2),1))
print(getResults(3.5))
I hope this helps!
Answer: False
Explanation: In java, whenever a final class is declared it cannot be extended further and also it is not possible for a declared class to be overridden in the sub class. A class can be declared final by using the final keyword. Final class cannot be extended but they can be used to extend the other classes.Therefore the final class cannot be sub classed before it in java.
