devil

Python Programming Lab

PART-A

Program No.1: Program to check if a number belongs to the Fibonacci Sequence.

N = int(input("Enter a number : "))

f3 = 0

f1 = 1

f2 = 1

if ( N == 0 ) or ( N == 1 ) :

print("The given number belongs to fibonacci series")

else :

while f3 < N :

f3 = f1 + f2

f2 = f1

f1 = f3

if f3 == N :

print("The given number belongs to fibonacci series")

else :

print("The given number does not belong to fibonacci series")

OUTPUT:

Enter a number : 5

The given number belongs to fibonacci series

Enter a number : 17

The given number does not belongs to fibonacci series

Program No.2: Program to solve Quadratic Equations.

import math

def findRoots ( a, b, c ) :

D = b * b - 4 * a * c

if D > 0:

print(" real and different roots ")

print((-b + sqrt ( D )) / (2 * a))

print((-b – sqrt ( D )) / (2 * a))

elif D == 0 :

print(" real and same roots")

print( -b / (2 * a) )

else :

sqrt_val = math.sqrt(abs(D))/ ( 2 * a )

print("Complex Roots")

print(- b / (2 * a), " + i", sqrt_val)

print(- b / (2 * a), " - i", sqrt_val)

# a, b, c = int(input(‘ Enter coefficients : ‘).split()

a = int(input('Enter a : '))

b = int(input('Enter b : '))

c = int(input('Enter c : '))

if a == 0:

print("Input correct quadratic equation")

else:

findRoots (a, b, c)

OUTPUT- 1: OUTPUT- 2:

Enter a : 2

Enter b : 5

Enter c : 7

Complex Roots

-1.25 + i 1.3919410907075054

-1.25 - i 1.3919410907075054

Enter a : 1

Enter b : 2

Enter c : 1

real and same roots

-1.0

Program No.3: Program to find the sum of n natural numbers.

num = int ( input (" Enter a number : "))

dupl = num

if num < 0 :

print(" Enter a positive number ")

else:

sum = 0

while ( num > 0 ) :

sum += num

num -= 1

print(f"The sum of {dupl} natural number is ", sum)

OUTPUT:

Enter a number : -5

Enter a positive number

Enter a number : 10

The sum of 10 natural number is 55

Program No.4: Program to Display Multiplication Table.

num = int ( input (" Enter a number : "))

print(f"Table of { num } is : ")

for a in range ( 1 , 11):

print(num,'x',a,'=',num*a)

OUTPUT:

Enter a number : 9

Table of 9 is :

9 x 1 = 9

9 x 2 = 18

9 x 3 = 27

9 x 4 = 36

9 x 5 = 45

9 x 6 = 54

9 x 7 = 63

9 x 8 = 72

9 x 9 = 81

9 x 10 = 90

Program No.5: Program to check if a given number is a prime Number or not.

num = int(input("Enter a number: "))

flag = False

if num == 1:

print(num, "is not a prime number")

elif num > 1:

for i in range(2, num):

if (num % i) == 0:

flag = True

break

if flag:

print(num, "is not a prime number")

else:

print(num, "is a prime number")

OUTPUT:

Enter a number: 7

7 is a prime number

Enter a number: 6

6 is not a prime number

Program No.6: Program to Implement a Sequential-Search.

from array import *

def linear_Search(A, N, key):

for i in range(0, N):

if (A[i] == key):

return i

return -1

# Main Method Bigins Here…

A = array('i',[])

N = int(input("Enter the total number of elements of an ARRAY : " ))

print(f"Enter { N } integer elements of an ARRAY")

for i in range(N):

A.append(int(input()))

key=int(input("Enter the KEY element to be searched : "))

res = linear_Search(A, N, key)

if(res == -1):

print(key, " Element not found")

else:

print(key, " Element found at index: ", res)

OUTPUT:

Enter the total number of elements of an ARRAY : 5

Enter 5 integer elements of an ARRAY

-5

Enter the KEY element to be searched : -5

Element found at index: 4

……………………………………………………………………………………………………………………….

Enter the total number of elements of an ARRAY : 4

Enter 4 integer elements of an ARRAY

Enter the KEY element to be searched : -4

Element not found

Program No.7: Program to create simple calculator functions.

def calculator (x , i , j ):

switcher = {

1: ( i + j ),

2: (i - j),

3: (i * j),

4: (i / j),

}

print ( switcher.get (x, "wrong input"))

print("...........SIMPLE CALCULATER............")

print ("1. Addition")

print ("2. Subtraction")

print ("3. Multiplication")

print ("4. Division")

x = input ("Please enter your action :--> ")

i = input ("Please enter first number :--> ")

j = input ("Please enter second number :--> ")

calculator (int(x) , int(i) , int(j))

OUTPUT:

...........SIMPLE CALCULATER............

1. Addition

2. Subtraction

3. Multiplication

4. Division

Please enter your action :--> 2

Please enter first number :--> 5

Please enter second number :--> 9

-4

Program No.8: program to Explore String Functions.

str1 = input ("Enter first string:-->")

str2 = input ("Enter second string:-->")

print("Conversion of uppercase of", str1, "is" , str1.upper() )

print("Conversion of lowercase of", str2, "is" , str2.lower() )

print("Swap-case of string", str1, "is", str1.swapcase())

print("The cased version of string", str1, "is", str1.title())

print("String replacement of first string", str1, "to", str1.replace(str1 , str2))

string = "Python is awesome"

capitalized_string = string.capitalize()

print("old string :-> ", string)

print("Capitalized string is :-> " , capitalized_string)

string = "Python is awesome, isnt it?"

substring = "is"

count = string.count(substring)

print("The count of given string is:->", count)

name = "bcacollege,nidasoshi"

if name.isalpha() == True:

print("All characters are alphabates")

else:

print("All characters are not alphabates")

print("Maximum is :-> ",max(1,3,2,5,4))

num=[1,3,2,8,5,10,6]

print("The maximum number in given array is:->", max(num))

teststring = "Python"

print("Length of",teststring,"is :-> ", len(teststring))

OUTPUT:

Enter first string :--> computer

Enter second string :--> APPLICATION

Conversion of uppercase of computer is COMPUTER

Conversion of lowercase of APPLICATION is application

Swap-case of string computer is COMPUTER

The cased version of string computer is Computer

String replacement of first string computer to APPLICATION

old string :-> Python is awesome

Capitalized string is :-> Python is awesome

The count of given string is :-> 2

All characters are not alphabates

Maximum is :-> 5

The maximum number in given array is :-> 10

Length of Python is :-> 6

Program No.9: Program to Implement Selection sort.

from array import*

N = int(input("Enter size of an array:--> "))

A = array('i',[])

print("Enter array elements:-->")

for i in range(N):

A.append(int(input()))

for i in range(0,len(A)-1):

for j in range(i+1,len(A)):

if A[i]>A[j]:

temp=A[i]

A[i]=A[j]

A[j]=temp

print("The content of an array after sorting is : ")

for i in range(N):

print(A[i])

OUTPUT:

Enter size of an array :--> 5

Enter array elements :-->

-2

The content of an array aft er sorting is :

-2

Program No.10: Program to Implement Stack.

def create_stack():

stack = list()

return stack

def Isempty(stack):

return len(stack) == 0

def push(stack,n):

stack.append(n)

print("pushed item ",n)

def pop(stack):

if(Isempty(stack)):

return"Stack is Empty"

else:

return stack.pop()

def show(stack):

print("The stack elements are:")

for i in stack:

print(i)

stack=create_stack()

push(stack, str(10))

push(stack, str(20))

push(stack, str(30))

push(stack, str(40))

show(stack)

print("Popped item "+pop(stack))

show(stack)

OUTPUT:

Pushed item 10

Pushed item 20

Pushed item 30

Pushed item 40

The stack elements are:

Popped item 40

The stack elements are:

Program No.11: Program to Read and Write into a file.

file1 = open("myfile.txt","w")

L=["This is Delhi \n","This is Paris \n","This is Londan \n"]

file1.write("Hello \n")

file1.writelines(L)

file1.close()

file1=open("myfile.txt","r+")

print("Output of Read Function is")

print(file1.read())

file1.seek(0)

print("Output of Readline Function is")

print(file1.readline())

file1.seek(0)

print("Output of Read(9) Function is")

print(file1.read(9))

file1.seek(0)

print("Output of Readline(9) Function is")

print(file1.readline(9))

file1.seek(0)

print("Output of Readlines Function is")

print(file1.readlines())

file1.close()

OUTPUT: NOTE :---( Open “myfile.txt” file by searching it and SHOW that in Notepad

Output of Read Function is

Hello

This is Delhi

This is Paris

This is Londan

Output of Readline Function is

Hello

Output of Read(9) Function is

Hello

Output of Readline(9) Function is

Hello

Output of Readlines Function is

['Hello \n', 'This is Delhi \n', 'This is Paris \n', 'This is Londan \n']

Python Programming Lab

PART-B

Program No.1: Program to Demonstrate usage of basic regular expression.

import re

str = "The rain in spain"

x = re.findall("ai",str)

print("Search of string 'ai': ",x)

x = re.search("\s" ,str)

print("The first white-space character is located in position : ",x.start())

x = re.split("\s",str,1)

print("Split the string in the occurrence of first white-space:",x)

x = re.sub("\s","9",str)

print("Each white-space is replaced with 9 digit: ",x)

print("----------------------------------------------")

x = re.findall("[a-m]",str)

print("The letters in between a to m in the string:",x)

x = re.findall("spain$",str)

if(x):

print("\n", str, ": Yes, this string ends with 'spain' word ")

else:

print("\n No match ")

x = re.findall("^The",str)

if(x):

print("\n",str,": Yes, this string starts with 'The' word")

else:

print("\n No match")

str1 = "The rain in spain falls mainly in the plain"

x = re.findall("aix*",str1)

print("\n All ai matching characters:",x)

if(x):

print("Yes, there is atleast one match")

else:

print("No match")

x = re.findall("al{2}",str1)

print("\n The string which contains 'all':",x)

if(x):

print("Yes, there is atleast one match")

else:

print("No match")

str2 = "That will be 59 dollars"

x = re.findall("\d",str2)

print("\n Digits in the string:",x)

x = re.findall("do...rs",str2)

print("\n Dot meta character matches any character:",x)

OUTPUT:

Search of string 'ai': ['ai', 'ai']

The first white-space character is located in position : 3

Split the string in the occurrence of first white-space: ['The', 'rain in spain']

Each white-space is replaced with 9 digit: The9rain9in9spain

----------------------------------------------

The letters in between a to m in the string: ['h', 'e', 'a', 'i', 'i', 'a', 'i']

The rain in spain : Yes, this string ends with 'spain' word

The rain in spain : Yes, this string starts with 'The' word

All ai matching characters: ['ai', 'ai', 'ai', 'ai']

Yes, there is atleast one match

The string which contains 'all': ['all']

Yes, there is atleast one match

Digits in the string: ['5', '9']

Dot meta character matches any character: ['dollars']

Program No.2: Program to Demonstrate use of advanced regular expressions for data validation.

import re

def validate_password(password):

regular_expression = "^(?=.*[a-z])(?=.*[A-

Z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!#%*?&]{6,20}$"

pattern = re.compile(regular_expression)

valid = re.search(pattern, password)

if valid:

print("Password is valid.")

else:

print("Password is invalid.")

# main method starts HERE…..

list_of_passwords = ['Abc@123', 'abc@123',

'ABC@123', 'Abc@xyz', 'abc123', '12@#$%Abc',

'Ab@1', "AAAAAbbbbbcccccc@#$%123456789"]

for i in list_of_passwords:

print(i, ":"), validate_password(i)

OUTPUT:

Abc@123 :

Password is valid.

abc@123 :

Password is invalid.

ABC@123 :

Password is invalid.

Abc@xyz :

Password is invalid.

abc123 :

Password is invalid.

12@#$%Abc :

Password is valid.

Ab@1 :

Password is invalid.

AAAAAbbbbbcccccc@#$%123456789 :

Password is invalid.

Program No.3: Program to Demonstrate use of list.

print("PROGRAM FOR BUILT-IN METHODS OF LIST\n")

animal=['Cat','Dog','Rabbit']

print("Old list:->",animal)

animal.append('Cow')

print("Updated list:->",animal)

language=['Python','Java','C++','C']

print("Old list:->",language)

return_value=language.pop(3)

print("Updated List:->",language)

vowels=['e','a','u','o','i']

print("Old list:->",vowels)

vowels.sort()

print("sorted List in Assending order:->",vowels)

vowels.sort(reverse=True)

print("sorted List in Desending order:->",vowels)

vowel=['a','e','i','u']

print("Old list:->",vowel)

vowel.insert(3,'o')

print("Update list:->",vowel)

vowel.remove('a')

print("Update list:->",vowel)

os=['linux','windows','cobol']

print("Old list:->",os)

os.reverse()

print("Update list:->",os)

OUTPUT:

PROGRAM FOR BUILT-IN METHODS OF LIST

Old list:-> ['Cat', 'Dog', 'Rabbit']

Updated list:-> ['Cat', 'Dog', 'Rabbit', 'Cow']

Old list:-> ['Python', 'Java', 'C++', 'C']

Updated List:-> ['Python', 'Java', 'C++']

Old list:-> ['e', 'a', 'u', 'o', 'i']

sorted List in Assending order:-> ['a', 'e', 'i', 'o', 'u']

sorted List in Desending order:-> ['u', 'o', 'i', 'e', 'a']

Old list:-> ['a', 'e', 'i', 'u']

Update list:-> ['a', 'e', 'i', 'o', 'u']

Update list:-> ['e', 'i', 'o', 'u']

Old list:-> ['linux', 'windows', 'cobol']

Update list:-> ['cobol', 'windows', 'linux']

Program No.4:Program to Demonstrate use of Dictionary.

thisdict = {'NAME':'Vishal','PLACE':'Sankeshwar','USN':1711745}

print("Dictonary Content=",thisdict)

x = thisdict['PLACE']

print("PLACE is:->",x)

print("Keys in Dictonary are:")

for x in thisdict.keys():

print(x)

print("Values in this dictonary are:->")

for x in thisdict.values():

print(x)

print("Both Keys and values of the dictonary are:->")

for x,y in thisdict.items():

print(x,y)

print("Total items in the dictonary:->",len(thisdict))

thisdict['District'] = 'Belagavi'

print("Added new item is = ",thisdict)

thisdict.pop('PLACE')

print("After removing the item from dictonary=",thisdict)

del thisdict['USN']

print("After deleting the item from dictonary=",thisdict)

thisdict.clear()

print("Empty Dictonary=",thisdict)

thisdict = {‘Place’ : ‘Sankeshwar’}

mydict=thisdict.copy()

print("Copy of Dictonary is=",mydict)

OUTPUT:

Dictonary Content= {'NAME': 'Vishal', 'PLACE': 'Sankeshwar', 'USN': 1711745}

PLACE is:->Sankeshwar

Keys in Dictonary are:

NAME

PLACE

USN

Values in this dictonary are:->

Vishal

Sankeshwar

1711745

Both Keys and values of the dictonary are:->

NAME Vishal

PLACE Sankeshwar

USN 1711745

Total items in the dictonary:-> 3

Added new item is= {'NAME': 'Vishal', 'PLACE': 'Sankeshwar', 'USN': 1711745, 'District': 'Belagavi'}

After removing the item from dictonary= {'NAME': 'Vishal', 'USN': 1711745, 'Distict': 'Belagavi'}

After deleting the item from dictonary= {'NAME': 'Vishal', 'Distict': 'Belagavi'}

Empty Dictonary= {}

Copy of Dictonary is= {‘Place’ : ‘Sankeshwar’}

Program No.5: Program to Create SQLite Database and Perform Operations on Table.

import sqlite3

conn = sqlite3.connect("test1.db")

curs = conn.cursor()

curs.execute("create table if not exists emp10(id integer,name text)")

curs.execute("insert into emp10(id,name) values(101,'Hari')")

curs.execute("insert into emp10(id,name) values(102,'Ravi')")

curs.execute("insert into emp10(id,name) values(103,'Shashi')")

print("Displaying the emp10 table")

curs.execute("select *from emp10")

rows = curs.fetchall()

for i in rows:

print (i)

curs.execute("update emp10 set name='Hari-Om' where id=101")

curs.execute("delete from emp10 where id=103")

print("Displaying the emp10 table..AFTER UPDATE & DELETE")

curs.execute("select *from emp10")

rows = curs.fetchall()

for i in rows:

print (i)

#curs.execute("truncate emp10")

curs.execute("drop table emp10")

conn.commit()

curs.close()

conn.close()

OUTPUT:

Displaying the emp5 table

(101, 'Ravi')

(101, 'Ravishannker')

(101, 'Ramresh')

After update and delete the records in the table

Displaying the emp5 where id=103

(101, 'Rakesh')

Table is dropped

Program No.6: Program to Create a GUI using TKinter module.

import tkinter as tk

def show_entry_fields():

print("First Name: %s\n Last Name: %s" % (e1.get(), e2.get()))

master = tk.Tk()

tk.Label(master, text=" GUI ", fg="red", font=('times', 24, 'italic')).grid(row=0)

tk.Label(master, text="First Name").grid(row=1)

tk.Label(master, text="Last Name").grid(row=2)

e1 = tk.Entry(master)

e2 = tk.Entry(master)

e1.grid(row=1, column=1)

e2.grid(row=2, column=1)

tk.Label(master, text="Select Gender:", fg="blue").grid(row=3, column=0)

R1=tk.Radiobutton(master, text="Male", value=1).grid(row=4, column=0, sticky=tk.W)

R2=tk.Radiobutton(master, text="Female", value=2).grid(row=4, column=1, sticky=tk.W)

tk.Label(master,text = "Select Age:", fg="blue").grid(row=5, column=0)

tk.Spinbox(master, from_= 18, to = 25).grid(row=5, column=1)

tk.Label(master, text="Select Subject:", fg="blue").grid(row=6, column=0)

tk.Checkbutton(master, text="Java").grid(row=7, column=0, sticky=tk.W)

tk.Checkbutton(master, text="Python").grid(row=7, column=1, sticky=tk.W)

tk.Checkbutton(master, text="PHP").grid(row=8, column=0, sticky=tk.W)

tk.Checkbutton(master, text="C#.Net").grid(row=8, column=1, sticky=tk.W)

tk.Label(master,text = "Select District:", fg="blue").grid(row=9, column=0)

listbox = tk.Listbox(master)

listbox.insert(1,"Belgaum")

listbox.insert(2, "Bangalore")

listbox.insert(3, "Dharawad")

listbox.insert(4, "Hubli")

listbox.insert(5, "Mysore")

listbox.insert(6, "Mangalore")

listbox.grid(row=10,column=1)

tk.Button(master, text='QUIT', fg="red", bg="yellow", command=master.destroy).grid(row=11, column=0, sticky=tk.W, pady=4)

tk.Button(master,text='SHOW', fg="red", bg="yellow", command=show_entry_fields).grid(row=11, column=1, sticky=tk.W, pady=4)

tk.mainloop()

OUTPUT:

First Name: Aditya

Last Name: Yadav

Program No.7: Program to Demonstrate Exceptions in Python.

try:

print("TRY BLOCK")

a=int(input("Enter a :-> "))

b=int(input("Enter b :-> "))

c=a/b

except:

print("EXCEPT BLOCK")

print("We cannot divide by ZERO")

else:

print("ELSE BLOCK")

print("The division of a and b is :-> ",c)

print("NO EXCEPTION")

finally:

print("FINALLY BLOCK")

print("Out of except,ELSE and FINALLY BLOCK")

OUTPUT-1:

TRY BLOCK

Enter a :-> 10

Enter b :-> 2

ELSE BLOCK

The division of a and b is :-> 5.0

NO EXCEPTION

FINALLY BLOCK

Out of except,ELSE and FINALLY BLOCK

OUTPUT-2:I 12

TRY BLOCK

Enter a :-> 10

Enter b :-> 0

EXCEPT BLOCK

We cannot divide by ZERO

FINALLY BLOCK

-1356799 0.Out of except,ELSE and FINALLY BLOCK

Program No.8: Program to Draw Line chart and Bar chart using Matplotlib.

import matplotlib.pyplot as plt # from matplotlib import pyplot as plt

import numpy as nmpi

x = nmpi.arange(1,11)

y1 = 2 * x

y2 =3 * x

plt.subplot(2,2,1)

plt.title("LINE CHART...", color="blue")

plt.grid()

plt.xlabel("X-Labels",color="red")

plt.ylabel("Y-Labels",color="violet")

plt.plot(x,y1,color='green',linewidth=5)

plt.subplot(2,2,2)

plt.plot(x,y2,color='indigo',linewidth=3, linestyle=":")

students = list(["AMit","Raj","Suraj","Kishan"])

marks = list([60,90,45,6])

plt.subplot(2,2,3)

plt.grid()

plt.title("BAR CHART...", loc='right',color="blue")

plt.bar(students,marks,color="red")

#plt.bar(students,marks)

plt.show()

OUTPUT:

Program No.9: Program to Drawing Histogram and pie chart using matplotlib.

import matplotlib.pyplot as mlt

student_performance=["excellent","good","average","poor"]

student_values=[15,20,40,10]

mlt.subplot(1,2,1)

mlt.pie(student_values,labels=student_performance,startangle=90,explode=[0.2,0.1,0,0],shadow=True,colors=["violet","indigo","blue","orange"])

marks=[90,92,40,60,55,44,30,20,10,54,74,82]

grade_interval=[0,35,70,100]

mlt.subplot(1,2,2)

mlt.title(".......STUDENT......GRADE......")

mlt.hist(marks,grade_interval,facecolor="cyan",rwidth=0.7,histtype="bar")

mlt.xticks([0,35,70,100])

mlt.xlabel("P E R C E N T A G E ")

mlt.ylabel("No. of STUDENTS...")

mlt.show()

OUTPUT:

Program No.10: Program to create Array using NumPy and Perform Operations on Array.

import numpy as np

A=np.array([4,3,2,1])

print("Array elements are:->",A)

min_value=np.min(A)

max_value=np.max(A)

mean_value=np.mean(A)

print("The Maximum value is:->",min_value)

print("The Maximum value is:->",max_value)

print("The Mean value is:->",mean_value)

A = A + 10

print("Add 10 to each element in the array:->",A)

A = A*2

print("Multiply each element in the array by 2:->",A)

SA=np.sort(A)

print("Sorted array in ASCENDING ORDER:->",SA)

print("Sorted array in DESCENDING ORDER:->",np.sort(A)[::-1])

OUTPUT:

Array elements are:-> [4 3 2 1]

The Maximum value is:-> 1

The Maximum value is:-> 4

The Mean value is:-> 2.5

Add 10 to each element in the array:-> [14 13 12 11]

Multiply each element in the array by 2:-> [28 26 24 22]

Sorted array in ASCENDING ORDER:-> [22 24 26 28]

Sorted array in DESCENDING ORDER:-> [28 26 24 22]

Program No.11: Program to Create DataFrame from Excel sheet using Pandas and Perform Operations on DataFrames.

import pandas as pd

#Create an EXCEL file “MY1.xlsx” and save it into your Project Path

data = pd.read_excel('MY1.xlsx')

print("\n** displaying data from dataframes**\n")

print(data)

print("\n**OPERATING ON DATAFRAMES**\n")

print("\n1.View the first few rows of the dataframes:")

print(data.head())

print("\n2.Number of rows and columns in the data frames:",end=" ")

print(data.shape)

print("\n3.Filtered data(Age column < 20):")

filtered_data = data[data['Age'] < 20]

print(filtered_data)

print("\n4.Sort dataframes based on'Age' col in ascending order:")

sorted_data = data.sort_values(by = 'Age', ascending = True)

print(sorted_data)

print("\n program closed...")

** displaying data from dataframes**

Empl-Id Name Age Salary Country

0 101 Shilpa 16 25000 USA

1 102 Rajesh 17 12000 SwitzerLand

2 103 Akshata 20 45000 London

3 104 Gayatri 18 50000 Germany

4 105 Ganesh 32 60000 Australia

5 106 Ashwini 22 123456 Russia

6 107 Sangeeta 16 88888 Africa

**OPERATING ON DATAFRAMES**

1.View the first few rows of the dataframes:

Empl-Id Name Age Salary Country

0 101 Shilpa 16 25000 USA

1 102 Rajesh 17 12000 SwitzerLand

2 103 Akshata 20 45000 London

3 104 Gayatri 18 50000 Germany

4 105 Ganesh 32 60000 Australia

2.Number of rows and columns in the data frames: (7, 5)

3.Filtered data(Age column<20):

Empl-Id Name Age Salary Country

0 101 Shilpa 16 25000 USA

1 102 Rajesh 17 12000 SwitzerLand

3 104 Gayatri 18 50000 Germany

6 107 Sangeeta 16 88888 Africa

4.Sort dataframes based on'Age' col in ascending order:

Empl-Id Name Age Salary Country

0 101 Shilpa 16 25000 USA

6 107 Sangeeta 16 88888 Africa

1 102 Rajesh 17 12000 SwitzerLand

3 104 Gayatri 18 50000 Germany

2 103 Akshata 20 45000 London

5 106 Ashwini 22 123456 Russia

4 105 Ganesh 32 60000 Australia

program closed...

devil

devil

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