Answer:
Database environment is created by storing the data and other related components.The input-output action takes place in the database when the reading and writing of the record units of block is to be done to and from disk unit to memory storage.
The database engine is responsible for reading action of the record before entering it to the memory and then stores it. If the data record unit is to be exported to the disk then output action takes place .It also helps in performing indexing ,vacuuming, portioning etc the information Thus, I/O is important for database.
Solution :
check_palindrome
lower_
_string
string
_lower()
Let stack = new Stack()
Let queue = new Queue();
for each character c in lower_case_string:
stack.push(c);
queue.enqueue(c);
let isPalindrome = true;
while queue is not empty {
if (queue.remove().equals(stack.pop())) {
continue;
} else {
isPalindrome=false;
break while loop;
}
}
return isPalindrome
Input = aabb
output = true
input =abcd
output = false
Answer:
The loops are nested, and the program ends when loop 1 is completed. Since loop 4 is the innermost one, that one is completed first.
The python program that creates a Bankaccount class for a Bank ATM that is made up of the customers and has a deposit and withdrawal function is given below:
<h3>Python Code</h3>
# Python program to create Bankaccount class
# with both a deposit() and a withdraw() function
class Bank_Account:
def __init__(self):
self.balance=0
print("Hello!!! Welcome to the Deposit & Withdrawal Machine")
def deposit(self):
amount=float(input("Enter amount to be Deposited: "))
self.balance += amount
print("\n Amount Deposited:",amount)
def withdraw(self):
amount = float(input("Enter amount to be Withdrawn: "))
if self.balance>=amount:
self.balance-=amount
print("\n You Withdrew:", amount)
else:
print("\n Insufficient balance ")
def display(self):
print("\n Net Available Balance=",self.balance)
# Driver code
# creating an object of class
s = Bank_Account()
# Calling functions with that class object
deposit()
s.withdraw()
s.display()
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