Answer:
b. adds to Iterator the ability to move backwards in the collection
Explanation:
In Java programming, the ListIterator interface adds to Iterator the ability to be bidirectional i.e move backwards and forward in the collection and it is a sub-interface of the Iterator interface.
The ListIterator interface makes it possible to modify any list during iteration and determine its position in the list.
Formatting toolbar because if you look to the right there is the slides and at the top it says: Formatting toolbar
Answer:
Explanation:
iname=input("Enter the file name: ")
inputfile=open(iname,'r')
lines=[]
for line in inputfile:
lines.append(line)
inputfile.close()
print("The file has ",len(lines)," lines")
while True:
linenumber=int(input("Enter the line number or 0 to quit: "))
if linenumber==0:
break
elif linenumber > len(lines):
print("Error: line number must be less than ", len(lines))
else:
print(linenumber, " : ", lines[linenumber - 1])
def CountVowels(epsilon):
countNum = 0
for x in range(len(epsilon)):
letter = epsilon[x]
if letter.lower() in "aeiou":
countNum += 1
return countNum
def ExtractOdds(zeta):
result = ""
for x in range(len(zeta)):
if x % 2 == 1:
result += zeta[x]
return result
sentence_A = input("Enter a sentence: ")
sentence_B = input("Enter a sentence: ")
print(CountVowels(sentence_A))
print(ExtractOdds(sentence_B))
I hope this helps!
