Library

Python Files Quiz

By Mickey Arnold
Last updated 10 months ago
10 Questions

What is the output?

file = open('input1.dat', 'r')

for line in file:
print ( line )

///////////////////////////
input1.dat
I
want
a
dog


What is the output?

file = open('input2.dat', 'r')
for line in file:
print ( line )

//////////////////////////////
input2.dat
21
bill
watt
1943


file = open('input3.dat', 'r')
times = int(file.readline().strip())
for x in range(0, times):
line = file.readline()
print ( line )
///////////////////////////////////
input3.dat
8
two
three
four
five


From the code above, what is times?


file = open('input3.dat', 'r')
times = int(file.readline().strip())
for x in range(0, times):
line = file.readline()
print ( line )
///////////////////////////////////
input3.dat
3
two
three
four
five


From the code above, what is the output?


file = open('input4.dat', 'r')
times = int(file.readline().strip())
total = 0
for x in range(0, times):
num = int(file.readline())
total = total + num
print ( "total = " + str(total) )

//////////////////////////////////////
input4.dat
8
12
15
21
36
34
82
99
23

what is the output?


file = open('input4.dat', 'r')
times = int(file.readline().strip())
total = 0
for x in range(0, times):
num = int(file.readline())
total = total + num
print ( "total = " + str(total) )

//////////////////////////////////////
input4.dat
4
12
15
21
36
34
82
99
23

what is the output?


file = open('input4.dat', 'r')
times = int(file.readline().strip())
total = 0
for x in range(0, times):
num = int(file.readline())
total = total + num
print ( "total = " + str(total) )

//////////////////////////////////////
input4.dat
12
15
21
36
34
82
99
23

what is times?


The program sends data to the file in the output file stream. Then the program gets data from the file. The program is not always in control when working with files.

For loops and While loops are used to __________through loops.

What is output by the code below?
cat = "QR S T UV"
dog = cat.split( )
print( dog[3] )