What action would the code below perform?
f = open('while.dat')
while True:
line = f.readline()
if not line:
break
Question 18
18.
What action would the code below perform?
f = open("for.dat","r");
times = int( f.readline() )
b = sys.maxsize
for x in range(0, times):
v = int( f.readline() )
if b > v :
b = v
Question 19
19.
What action would the code below perform?
f = open("for.dat","r");
val = int( f.readline() )
1
Question 20
20.
Question 1
1.
What is output by the code below?
cat = "Q R S T U V"
dog = cat.split()
print(dog[2])
Question 2
2.
Which of these can be used to convert a string / text value into a numeric value?
Question 3
3.
What is output by the code below?
cat = "Q R S T U V"
dog = cat.split()
print(dog[7])
Question 4
4.
Which of these represents the smallest numeric value in Python?
Question 5
5.
Question 5: Which of these can be used to convert a numeric value into a string / text value?
Question 6
6.
Question 6: Which of these can be used to determine how many values are present in a list?
Question 7
7.
Question 7: Which of these represents the largest numeric value in Python?
Question 8
8.
Question 8: What action would the code below perform?
f = open('while.dat')
while True:
line = f.readline()
if not line:
break
print( int( line ) )
Question 9
9.
What action would the code below perform?
f = open("for.dat","r");
times = int( f.readline() )
b = 0
for x in range(0, times):
b = b + int(f.readline())
Question 10
10.
Which type of loop would you use to read from a file with an unknown number of items?
Question 11
11.
Which type of loop would you use to read from a file with a known number of items?
Question 12
12.
What is output by the code below?
cat = "Q R S T U V"
dog = cat.split( )
print( dog[0] )
Question 13
13.
What action would the code below perform?
f = open("for.dat","r");
times = int( f.readline() )
for x in range(0, times):
print( f.readline() )
Question 14
14.
What action would the code below perform?
f = open("for.dat","r");
times = int( f.readline() )
for x in range(0, times):
f.readline()
Question 15
15.
What action would the code below perform?
f = open("for.dat","r");
Question 16
16.
What is output by the code below?
cat = "44"
print( int(cat) * 2 )
c. Opens a file and reads in the last value only.
d. The code does nothing.
e. There is no output due to a runtime error.
c. Reads in all values in the file and finds the smallest.
d. The code does nothing.
e. There is no output due to a runtime error.
c. Opens a file and reads in the last value only.
d. The code does nothing.
e. There is no output due to a runtime error.
Question 20: What action would the code below perform?
python
f = open("for.dat","r");
times = int(f.readline())
b = ~sys.maxsize
for x in range(0, times):
v = int(f.readline())
if b < v :
b = v
b. Reads in all values in the file and finds the biggest.
c. Reads in all values in the file and finds the smallest.
d. The code does nothing.
e. There is no output due to a runtime error.
d. V
e. R
d. str()
e. len()
d. V
e. error
d. str()
e. len()
d. str( )
e. len( )
d. str( )
e. len( )
d. str( )
e. len( )
c. Opens a file and reads in the last value only.
d. The code does nothing.
e. There is no output due to a runtime error.
c. Reads in all values in the file and finds the smallest.
