1: What is printed by the following statements?from itertools import productprint (list (product('AB', [3, 4])))2: What is printed by the following statements?try:1/0except Exception as e:print(e)3: What is printed by the following statements?with open("file.txt", 'w') as f:for i in range (3):with open("file.txt") as f:for line in f:print (line)f.write(str(i) + " " +str(i**2)+"\n")

Output:- [('A', 3), ('A', 4), ('B', 3), ('B', 4)] Code Screenshot and Output:-

1: What is printed by the following statements? from itertools import product print (list (product('AB', [3, 4]))) 2: What is printed by the following statements? try: except 1/0 Exception as e: print(e) 3: What is printed by the following statements? with open("file.txt", 'w') as f: for i in range(3): || f.write(str(i)+ +str(i**2)+"\n")

1: What is printed by the following statements? from itertools import product print (list (product('AB', [3, 4]))) 2: What is printed by the following statements? try: except 1/0 Exception as e: print(e) 3: What is printed by the following statements? with open("file.txt", 'w') as f: for i in range(3): || f.write(str(i)+ +str(i**2)+"\n")

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Stack operations

A stack is a linear data structure that follows certain order to perform the operation; the order will be LIFO (Last In First Out) data structure. In the stack data structure elements/items are removed and added only from the top. The topmost stack item/element is pointed by the top pointer and the element which is added to the stack first will get deleted at the last.

Question

1: What is printed by the following statements?
from itertools import product
print (list (product('AB', [3, 4])))
2: What is printed by the following statements?
try:
1/0
except Exception as e:
print(e)
3: What is printed by the following statements?
with open("file.txt", 'w') as f:
for i in range (3):
with open("file.txt") as f:
for line in f:
print (line)
f.write(str(i) + " " +str(i**2)+"\n")

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