Program1:checkwhetherthenumberisbelongstoFibonacciseriesornot

PARTA
n=int(input("Enterthenumber:")) c=0
a=1 b=1
ifn==0or n==1:
print("YesthenumberbelongstoFibonacciseries") else:
whilec<n: c=a+b b=a
a=cifc==n:

print("Yes,thenumberbelongstoFibonacciseries") else:
print("No,thenumbernotbelongstoFibonacciseries")

==========OUTPUT=========
Enterthenumber:5
Yesthenumberbelongstofibonacciseries

Enterthenumber:4
Nothenumbernotbelongstofibonacciseries




Program2:SolveQuadraticEquations


#importcomplexmathmodule import cmath

print("Enterthevalueofa") a=float(input())print("Enterthevalueofb") b=float(input())print("Enterthevalueofc") c=float(input())

#calculatethediscriminant d=(b**2)-(4*a*c)

#findthesolution
soln1=(-b-cmath.sqrt(d))/(2*a) soln2=(-b+cmath.sqrt(d))/(2*a)

#print("Thesolutionare") print("solution1=",soln1) print("solution2=",soln2)




=========OUTPUT=======
Enterthevalueofa 1
Enterthevalueofb 2
Enterthevalueofc 3
solution1= (-1-1.4142135623730951j) solution2=(-1+1.4142135623730951j)


Program3:Findthesumofnaturalnumbers


num=int(input("Enteranumber:")) if num< 0:
print("Enterapositivenumber") else:
sum =0
while(num>0):
sum+=num num-=1
print("Thesumis:",sum)



========OUTPUT========

Enteranumber:10 The sum is: 55


Program4:DisplayMultiplicationtable


num=int(input("Displaymultiplicationtableof?")) # Iterate 10 times from i = 1 to 10
for i in range(1, 11): print(num,'x',i,'=',num*i)

===========OUTPUT=======
Displaymultiplicationtableof?5 5 x 1 = 5
5x2= 10
5x3= 15
5x4= 20
5x5= 25
5x6= 30
5x7= 35
5x8= 40
5x9= 45
5x10= 50


Program5:Tocheckifanumberisprimeornot


num=int(input('Pleaseenteranumber:')) i = 2
flag = 0 whilei<num:
ifnum%i==0: flag = 1
print(num,"isNOTaprimenumber!"); i = i + 1
ifflag ==0:
print(num,"isaprimenumber!");

=========OUTPUT========
Pleaseenteranumber:7 7 is a prime number!

Pleaseenteranumber:4
4isNOTaprimenumber!


Program6:Implementsequentialsearch


deflin_search(list1,n,key): for i in range(0,n):
if(list1[i]==key): return i
return-1


n=int(input("Enter the size")) list1=input("Enterthenumbers:").split() list1=[int(x)for x in list1]
key=int(input("EnterthekeyElementtobesearched")) n=len(list1)
res=lin_search(list1,n,key) if(res==-1):print("Elementnotfound") else:
print("Elementfoundatindex:",res)


==========OUTPUT=======
Enterthesize:5
Enterthenumbers:2 4237 50
EnterthekeyElementtobesearched:23 Element found at index: 2

Enterthesize:4
Enterthenumbers:1 23 43
EnterthekeyElementtobesearched:10 element not found


Program7:Createacalculatorprogram


def add(x, y): returnx+y
defsubtract(x,y): return x - y
defmultiply(x,y): return x * y
defdivide(x,y): return x / y
print("Selectoperation.") print("1.Add") print("2.Subtract") print("3.Multiply") print("4.Divide")
whileTrue:
choice=input("Enterchoice(1/2/3/4):") if choice in ('1', '2', '3', '4'):
try:
num1 = float(input("Enter first number: ")) num2=float(input("Entersecondnumber:"))
exceptValueError:
print("Invalidinput.Pleaseenteranumber.") continue
ifchoice =='1':
print(num1,"+",num2,"=",add(num1,num2)) elif choice == '2':
print(num1,"-",num2,"=",subtract(num1,num2))

elifchoice=='3':
print(num1,"*",num2,"=",multiply(num1,num2)) elif choice == '4':
print(num1, "/", num2, "=", divide(num1, num2)) next_calculation=input("Let'sdonextcalculation?(yes/no):")
ifnext_calculation=="no": break
else:
print("InvalidInput")

============OUTPUT==========
Selectoperation. 1.Add2.Subtract 3.Multiply 4.Divide
Enter choice(1/2/3/4): 1 Enter first number: 23 Entersecondnumber:12
23.0+12.0=35.0
Let'sdonextcalculation?(yes/no):yes Enter choice(1/2/3/4): 2
Enter first number: 12 Entersecondnumber:6
12.0-6.0=6.0
Let'sdonextcalculation?(yes/no):no

Program8:Explorestringfunctions


str1=input("Enter the first string:") str2=input("Enterthesecondstring:")
print("conversionofuppercaseof",str1,"is",str1.upper()) print("conversionoflowercaseof",str2,"is",str2.lower()) print("swapcase of string",str1,"is",str1.swapcase()) print("title-case-of string",str1,"is",str1.title())
print("stringreplacementoffirststring",str1,"is",str1.replace(str1,str2)) string="python is awesome"
capitalized_string=string.capitalize() print("\n old string ",string) print("capitalizedstring",capitalized_string) name="bcacollegenidasoshi"
if name.isalpha()==True:
print("Allcharactersarealphabets") else:
print("Allcharactersarenotalphabets") print("Maximum is",max(1,2,3,4))
num=[1,3,2,8,5,10,6]
print("Maximumnumberis:",max(num)) teststring="python"
print("Lengthof",teststring,"is",len(teststring))


===========OUTPUT=========
Enterthefirststring:bca
Enter the second string:NIDASOSHI conversionofuppercaseofbcaisBCA
conversionoflowercaseofNIDASOSHIisnidasoshi swapcase of string bca is BCA
title-case-ofstringbcaisBca
stringreplacementoffirststringbcaisNIDASOSHI

old stringpython is awesome capitalizedstringPythonisawesome All characters are alphabets Maximum is 4
Maximumnumberis:10 Length of python is 6


Program9:Toimplementselectionsort


#Initializeanemptylist array = []
print("Enterthelimit") n=int(input())

for iinrange(n):
element=int(input("EntertheElement:")) array.append(element)

foriinrange(n-1): min = i
forjinrange(i+1,n):
ifarray[min]>array[j]: min = j
ifmin !=i:
temp = array[i] array[i]=array[min] array[min] = temp

print("TheSortedarrayinascendingorder:",end='\n') for i in range(n):
print(array[i])


=========OUTPUT========
Enterthelimit 5
EntertheElement:12 Enter the Element: 2 Enter the Element: 5 EntertheElement:23 Enter the Element: 1
TheSortedarrayinascendingorder: 1
2
5
12
23


Program10:Toimplementstack


#initialemptystack stack = []
#append()functiontopush # element in the stack stack.append('1') stack.append('2') stack.append('3') print(stack)
#pop()functiontopop # element from stack in # LIFO order
print('\nElementspopedfrommy_stack:') print(stack.pop())
print(stack.pop()) print(stack.pop()) #print(stack.pop())
print('\nmy_stackafterelementsarepoped:') print(stack)




========OUTPUT======== ['1', '2', '3']

Elementspopedfrommy_stack: 3
2
1

my_stackafterelementsarepoped: [ ]


Program11:ReadandWriteintoafile


#open a file for writing file=open("E:\klcF.txt","w")

#write some text to the file file.write("WelcometoBCADepartment\n")

L=['ThisisBCACollege\n','PlaceisNidasoshi\n','Fourthsemester\n'] file.writelines(L)

#closethefile file.close()

#open the file for reading file=open("E:\klcF.txt","r")

#readthecontentsofthefileintoastringvariable file_cont=file.read()

#printthecontentsofthefile print(file_cont)


===========OUTPUT==========
E:\klcF.txt
WelcometoBCADepartment This is BCA College
PlaceisNidasoshi Fourth semester


PARTB
#Program1:Demonstrateusageofbasicregularexpression


importre
# Search String str="Theraininspain" x=re.findall("ai",str)
print("Searchofstring'ai':",x)

x=re.search("\s",str)
print("Thefirstwhite-spacecharacterislocatedinposition:",x.start())

x=re.split("\s",str,1)
print("Splitthestringintheoccuranceoffirstwhite-space:",x)

x=re.sub("\s","9",str)
print("Eachwhite-spaceisreplacedwith9digit:",x) print("	")

# Metacharacters x=re.findall("[a-g]",str)
print("Thelettersinbetweenatoginthestring:",x)

x=re.findall("spain$",str) if(x):
print("\n",str,":Yes,thisstringendswith'spain'word") else:

print("\n No match ") x=re.findall("^The",str) if(x):
print("\n",str,":Yes,thisstringstartswith'The'word") else:
print("\nNomatch")

str1="Theraininspainfallsmainlyintheplain" x=re.findall("ai*",str1)
print("\nAllaimatchingcharacters:",x) if(x):
print("Yes,thereisatleastonematch") else:
print("Nomatch")

x=re.findall("all{1}",str1)
print("\nThestringwhichcontains'all':",x) if(x):
print("Yes,thereisatleastonematch") else:
print("Nomatch")

str2="Thatwillbe59dollars" x=re.findall("\d",str2)
print("\nDigitsinthestring:",x)

x=re.findall("do...rs",str2)
print("\nDotmetacharactermatchesanycharacter:",x)


============OUTPUT==========
Searchofstring'ai':['ai','ai']
Thefirstwhite-spacecharacterislocatedinposition:3
Splitthestringintheoccuranceoffirstwhite-space:['The','raininspain'] Each white-space is replaced with 9 digit:The9rain9in9spain
------------------------------------------------------------------------------
The letters in between a to g in the string: ['e', 'a', 'a'] Theraininspain:Yes,thisstringendswith'spain'word Theraininspain:Yes,this string starts with'The' word All ai matching characters: ['ai', 'ai', 'a', 'ai', 'ai']
Yes,thereisatleastonematch
Thestringwhichcontains'all':['all'] Yes, there is atleast one match
Digitsinthestring:['5','9']
Dotmetacharactermatchesanycharacter:['dollars']


Program2:Demonstrateuseofadvancedregularexpressionsfor-data validation.


#importingrelibrary import re
p=input("Enteryourpassword:") x=True
whilex:
if(len(p)<6orlen(p)>20): break
elifnotre.search("[a-z]",p): break
elifnotre.search("[A-Z]",p): break
elifnotre.search("[0-9]",p): break
elifnotre.search("[$#@]",p): break
elifre.search("\s",p): break
else:
print("ValidPassword") x=False
break
if x:
print("InvalidPassword")


===========OUTPUT========
Enteryourpassword:Kavita123@# Valid Password

Enteryourpassword:bcacollege Invalid Password


Program3:DemonstrateuseofList


print("PROGRAMFORBUILT-INMETHODSOFLIST\n");
demonstrate List numbers=[1,2,13,40,5] print(numbers) sum_of_numbers=sum(numbers) print("Sum=",sum_of_numbers) max_number=max(numbers) print("Max=",max_number) min_number=min(numbers) print("Min=",min_number) numbers.sort()
print("sortednumbersinascending",numbers) numbers.reverse()
print("sortednumbersindescending",numbers) numbers.append(6)
print("Updatednumbers",numbers) numbers.remove(13) print("Removed",numbers) numbers.clear()
print("Listafterclear",numbers)


==========OUTPUT========
PROGRAMFORBUILT-INMETHODSOFLIST

[1,2,13,40,5]
Sum=61
Max=40
Min=1
sortednumbersinascending[1,2,5,13,40]
sortednumbersindescending[40,13,5,2,1]
Updatednumbers[40,13,5,2,1,6]
Removed[40,5,2,1,6] List after clear []




Program4:DemonstrateuseofDictionaries


#deomstrate Dictionary person={"name":"Amit","age":"21","city":"Bangaluru","occupation":"student"}

#accessvaluesinthedictionary print(person["name"]) print(person["age"]) print(person["city"]) print(person["occupation"])

#modify values in the dictionary person["age"]=25 person["occupation"]="Engineer" print(person)

#addanewkey-valuepairtothedictionary person["country"]="India"
print(person)

#removeakey-valuepairfromdictonary del person["city"]
print(person)

#check if key-value exist in the dictionary if "occupation" in person: print("occupation:",person["occupation"])




============OUTPUT==========
Amit 21
Bangaluru student
{'name':'Amit','age':25,'city':'Bangaluru','occupation':'Engineer'}
{'name':'Amit','age':25,'city':'Bangaluru','occupation':'Engineer', 'country': 'India'}
{'name':'Amit','age':25,'occupation':'Engineer','country':'India'} occupation: Engineer


Program5:CreateSQLiteDatabaseandperformoperationson tables


importsqlite3
#createaconnectiontoaSqlitedatabase conn=sqlite3.connect('test.db')
#createacursorobject cursor=conn.cursor()
#createatable
cursor.execute("createtableemp2(idinteger,nametect)") #insert a record into the tables
cursor.execute("insert into emp2(id,name) values(101,'ravi')") cursor.execute("insert into emp2(id,name) values(102,'raj')") cursor.execute("insertintoemp2(id,name)values(103,'ramesh')") print("\nDisplaying the emp2 table")
cursor.execute("select*fromemp2") rows=cursor.fetchall()
forrowinrows: print(row)
print("\nafterupdateanddeletetherecordsinthetable") # update records in the table
cursor.execute("updateemp2setname='Akash'whereid=101") #delete a record from the table
cursor.execute("deletefromemp2whereid=103") print("Displaying the emp2 table") cursor.execute("select *from emp2") rows=cursor.fetchall()
forrowinrows: print(row)

#drop the table print("\nTableisdroped...")
cursor.execute("droptableemp2") #commit the transaction conn.commit()
#closethecursorandtheconnections cursor.close()
conn.close()

=========OUTPUT=======
Displayingtheemp2table (101, 'ravi')
(102,'raj')
(103,'ramesh')

afterupdateanddeletetherecordsinthetable Displaying the emp2 table
(101,'Akash')
(102,'raj')

Tableisdroped...


Program6:CreateaGUIusingTkintermodule


importtkinterastk
from tkinter import messagebox #functiontohandlebuttonclickevent def show_message():
messagebox.showinfo("Hello","welcometotheGUI")


#create the main window window=tk.Tk() window.title("My GUI") window.geometry("300x200")

#create label widget label=tk.Label(window,text="Hello,world") label.pack()

#createabuttonwidget
button=tk.Button(window,text="click me",command=show_message) button.pack()

#startthemaineventloop window.mainloop()




=========OUTPUT==========






Program7:Demonstrateexceptionsinpython


try:
num1=int(input("Enter the numerator:")) num2=int(input("Enterthedenominator:")) result=num1/num2
print("Result:",result) except ValueError: print("Invalid input") exceptZeroDivisionError:
print("Cannotdividebyzero") else:
print("Noexceptionoccur") finally:
print("Endofprogram")

===========OUTPUT==========

Enterthenumerator:12.2 Invalid input
Endof program


Enter the numerator:10 Enterthedinominator:0 Cannot divide by zero End of program


Program8:DrawingLinechartandBarchartusingMatplotlib


importmatplotlib.pyplotasplt # Data
x=[2,3,4,6,8]
y=[2,3,4,6,8]
#Plotthelinechart plt.subplot(121)
plt.plot(x,y,color='tab:red')

# Add labels and title plt.title('Line Chart') plt.xlabel('Xaxislabel') plt.ylabel('Yaxislabel')

# Show the plot plt.subplot(122) plt.title('Bar Chart') plt.xlabel('Xaxislabel') plt.ylabel('Yaxislabel')

plt.bar(x,y) plt.show()


==========OUTPUT=======








Program9:DrawingHistogramchartandPiechartusingMatplotlib


importmatplotlib.pyplotasplt import numpy as np

#Generate some random data data=np.random.randint(0,100,100)

#create histogram plt.subplot(121) plt.hist(data,bins=20)
plt.title("Histogramofrandomdata") plt.xlabel("value") plt.ylabel("frequency")
#sample data sizes=[30,25,20,15,10] labels=['A','B','C','D','E']
#create pie chart plt.subplot(122) plt.pie(sizes,labels=labels) plt.title("PIE CHART") plt.show()


==========OUTPUT=========






Program10:performarithmeticoperationsontheNumpyarrays


importnumpyasnp
#Initializingourarray
array1=np.arange(9,dtype=np.float64).reshape(3,3) #array1 = np.arange(9, dtype = np.float64)
print('FirstArray:') print(array1) print('Secondarray:')
array2=np.arange(11,20,dtype=np.float_).reshape(3,3) #array2 = np.arange(11,20, dtype = np.int_)
print(array2)print('\nAddingtwoarrays:') print(np.add(array1,array2))

print('\nSubtracting two arrays:') print(np.subtract(array1,array2))

print('\nMultiplying two arrays:') print(np.multiply(array1,array2))

print('\nDividing two arrays:') print(np.divide(array1,array2))


=========OUTPUT=======
FirstArray:	Secondarray:
[[0.1.2.]	[[11.12.13.]
[3.4. 5.]	[14.15.16.]
[6.7. 8.]]	[17.18.19.]]

Addingtwoarrays:
[[11.13.15.]
[17.19.21.]
[23.25.27.]]

Subtractingtwoarrays:
[[-11.-11.-11.]
[-11.-11.-11.]
[-11.-11.-11.]]

Multiplyingtwoarrays:
[[0.12.26.]
[42.60.80.]
[102.126.152.]]

Dividingtwoarrays:
[[0.	0.083333330.15384615]
[0.214285710.266666670.3125	]
[0.352941180.388888890.42105263]]


Program11:CreatedataframefromExcelsheetusingPandasandperform operations on data frames


importpandasaspd
#ReaddatafromexcelsheetsinanExcelfile
data=pd.read_excel('file.xlsx',sheet_name='kavita') print("\n**Displaying Data from DataFrames**\n") print(data)
print("\n**OPERATIONS ON DATAFRAMES**\n") print("\n1.ViewthefirstfewrowsoftheDataFrame:") print(data.head())
print("\n2.NumberofrowsandcolumnsintheDataFrame:",end="") print(data.shape)
print("\n3.Filtereddata(Agecolumn<25):") filtered_data =data[data['Age'] < 25] print(filtered_data)
print("\n4.SortDataFramebasedon'Age'colinascendingorder:") sorted_data = data.sort_values(by='Age', ascending=True) print(sorted_data)
print("\nProgramClosed...")


=========OUTPUT=========
**DisplayingDatafromDataFrames**

name
Age
marks

0	kiran
23
70

1	savita
20
90

2	kavya
25
80

3	sagar
18
70

4	sumit
21
56

5	sanket
22
50

6	akash
24
70

7	ramesh
26
40

8	ravi
27
45

9	soumya
28
90

10shilpa
17
65



**OPERATIONSONDATAFRAMES**
ViewthefirstfewrowsoftheDataFrame: nameAgemarks
kiran	23	70
savita	20	90
kavya	25	80
sagar	18	70
sumit	21	56

NumberofrowsandcolumnsintheDataFrame:(11,3)


Filtereddata(Agecolumn<25): nameAgemarks
kiran	23	70
savita	20	90
sagar	18	70
sumit	21	56
sanket	22	50
akash	24	70
10shilpa	17	65

SortDataFramebasedon'Age'colinascendingorder:


name
Age
marks

10
shilpa
17
65

3
sagar
18
70

1
savita
20
90

4
sumit
21
56

5
sanket
22
50

0
kiran
23
70

6
akash
24
70

2
kavya
25
80

7
ramesh	26
40

8
ravi	27
45Program1:checkwhetherthenumberisbelongstoFibonacciseriesornot

PARTA
n=int(input("Enterthenumber:")) c=0
a=1 b=1
ifn==0or n==1:
print("YesthenumberbelongstoFibonacciseries") else:
whilec<n: c=a+b b=a
a=cifc==n:

print("Yes,thenumberbelongstoFibonacciseries") else:
print("No,thenumbernotbelongstoFibonacciseries")

==========OUTPUT=========
Enterthenumber:5
Yesthenumberbelongstofibonacciseries

Enterthenumber:4
Nothenumbernotbelongstofibonacciseries




Program2:SolveQuadraticEquations


#importcomplexmathmodule import cmath

print("Enterthevalueofa") a=float(input())print("Enterthevalueofb") b=float(input())print("Enterthevalueofc") c=float(input())

#calculatethediscriminant d=(b**2)-(4*a*c)

#findthesolution
soln1=(-b-cmath.sqrt(d))/(2*a) soln2=(-b+cmath.sqrt(d))/(2*a)

#print("Thesolutionare") print("solution1=",soln1) print("solution2=",soln2)




=========OUTPUT=======
Enterthevalueofa 1
Enterthevalueofb 2
Enterthevalueofc 3
solution1= (-1-1.4142135623730951j) solution2=(-1+1.4142135623730951j)


Program3:Findthesumofnaturalnumbers


num=int(input("Enteranumber:")) if num< 0:
print("Enterapositivenumber") else:
sum =0
while(num>0):
sum+=num num-=1
print("Thesumis:",sum)



========OUTPUT========

Enteranumber:10 The sum is: 55


Program4:DisplayMultiplicationtable


num=int(input("Displaymultiplicationtableof?")) # Iterate 10 times from i = 1 to 10
for i in range(1, 11): print(num,'x',i,'=',num*i)

===========OUTPUT=======
Displaymultiplicationtableof?5 5 x 1 = 5
5x2= 10
5x3= 15
5x4= 20
5x5= 25
5x6= 30
5x7= 35
5x8= 40
5x9= 45
5x10= 50


Program5:Tocheckifanumberisprimeornot


num=int(input('Pleaseenteranumber:')) i = 2
flag = 0 whilei<num:
ifnum%i==0: flag = 1
print(num,"isNOTaprimenumber!"); i = i + 1
ifflag ==0:
print(num,"isaprimenumber!");

=========OUTPUT========
Pleaseenteranumber:7 7 is a prime number!

Pleaseenteranumber:4
4isNOTaprimenumber!


Program6:Implementsequentialsearch


deflin_search(list1,n,key): for i in range(0,n):
if(list1[i]==key): return i
return-1


n=int(input("Enter the size")) list1=input("Enterthenumbers:").split() list1=[int(x)for x in list1]
key=int(input("EnterthekeyElementtobesearched")) n=len(list1)
res=lin_search(list1,n,key) if(res==-1):print("Elementnotfound") else:
print("Elementfoundatindex:",res)


==========OUTPUT=======
Enterthesize:5
Enterthenumbers:2 4237 50
EnterthekeyElementtobesearched:23 Element found at index: 2

Enterthesize:4
Enterthenumbers:1 23 43
EnterthekeyElementtobesearched:10 element not found


Program7:Createacalculatorprogram


def add(x, y): returnx+y
defsubtract(x,y): return x - y
defmultiply(x,y): return x * y
defdivide(x,y): return x / y
print("Selectoperation.") print("1.Add") print("2.Subtract") print("3.Multiply") print("4.Divide")
whileTrue:
choice=input("Enterchoice(1/2/3/4):") if choice in ('1', '2', '3', '4'):
try:
num1 = float(input("Enter first number: ")) num2=float(input("Entersecondnumber:"))
exceptValueError:
print("Invalidinput.Pleaseenteranumber.") continue
ifchoice =='1':
print(num1,"+",num2,"=",add(num1,num2)) elif choice == '2':
print(num1,"-",num2,"=",subtract(num1,num2))

elifchoice=='3':
print(num1,"*",num2,"=",multiply(num1,num2)) elif choice == '4':
print(num1, "/", num2, "=", divide(num1, num2)) next_calculation=input("Let'sdonextcalculation?(yes/no):")
ifnext_calculation=="no": break
else:
print("InvalidInput")

============OUTPUT==========
Selectoperation. 1.Add2.Subtract 3.Multiply 4.Divide
Enter choice(1/2/3/4): 1 Enter first number: 23 Entersecondnumber:12
23.0+12.0=35.0
Let'sdonextcalculation?(yes/no):yes Enter choice(1/2/3/4): 2
Enter first number: 12 Entersecondnumber:6
12.0-6.0=6.0
Let'sdonextcalculation?(yes/no):no

Program8:Explorestringfunctions


str1=input("Enter the first string:") str2=input("Enterthesecondstring:")
print("conversionofuppercaseof",str1,"is",str1.upper()) print("conversionoflowercaseof",str2,"is",str2.lower()) print("swapcase of string",str1,"is",str1.swapcase()) print("title-case-of string",str1,"is",str1.title())
print("stringreplacementoffirststring",str1,"is",str1.replace(str1,str2)) string="python is awesome"
capitalized_string=string.capitalize() print("\n old string ",string) print("capitalizedstring",capitalized_string) name="bcacollegenidasoshi"
if name.isalpha()==True:
print("Allcharactersarealphabets") else:
print("Allcharactersarenotalphabets") print("Maximum is",max(1,2,3,4))
num=[1,3,2,8,5,10,6]
print("Maximumnumberis:",max(num)) teststring="python"
print("Lengthof",teststring,"is",len(teststring))


===========OUTPUT=========
Enterthefirststring:bca
Enter the second string:NIDASOSHI conversionofuppercaseofbcaisBCA
conversionoflowercaseofNIDASOSHIisnidasoshi swapcase of string bca is BCA
title-case-ofstringbcaisBca
stringreplacementoffirststringbcaisNIDASOSHI

old stringpython is awesome capitalizedstringPythonisawesome All characters are alphabets Maximum is 4
Maximumnumberis:10 Length of python is 6


Program9:Toimplementselectionsort


#Initializeanemptylist array = []
print("Enterthelimit") n=int(input())

for iinrange(n):
element=int(input("EntertheElement:")) array.append(element)

foriinrange(n-1): min = i
forjinrange(i+1,n):
ifarray[min]>array[j]: min = j
ifmin !=i:
temp = array[i] array[i]=array[min] array[min] = temp

print("TheSortedarrayinascendingorder:",end='\n') for i in range(n):
print(array[i])


=========OUTPUT========
Enterthelimit 5
EntertheElement:12 Enter the Element: 2 Enter the Element: 5 EntertheElement:23 Enter the Element: 1
TheSortedarrayinascendingorder: 1
2
5
12
23


Program10:Toimplementstack


#initialemptystack stack = []
#append()functiontopush # element in the stack stack.append('1') stack.append('2') stack.append('3') print(stack)
#pop()functiontopop # element from stack in # LIFO order
print('\nElementspopedfrommy_stack:') print(stack.pop())
print(stack.pop()) print(stack.pop()) #print(stack.pop())
print('\nmy_stackafterelementsarepoped:') print(stack)




========OUTPUT======== ['1', '2', '3']

Elementspopedfrommy_stack: 3
2
1

my_stackafterelementsarepoped: [ ]


Program11:ReadandWriteintoafile


#open a file for writing file=open("E:\klcF.txt","w")

#write some text to the file file.write("WelcometoBCADepartment\n")

L=['ThisisBCACollege\n','PlaceisNidasoshi\n','Fourthsemester\n'] file.writelines(L)

#closethefile file.close()

#open the file for reading file=open("E:\klcF.txt","r")

#readthecontentsofthefileintoastringvariable file_cont=file.read()

#printthecontentsofthefile print(file_cont)


===========OUTPUT==========
E:\klcF.txt
WelcometoBCADepartment This is BCA College
PlaceisNidasoshi Fourth semester


PARTB
#Program1:Demonstrateusageofbasicregularexpression


importre
# Search String str="Theraininspain" x=re.findall("ai",str)
print("Searchofstring'ai':",x)

x=re.search("\s",str)
print("Thefirstwhite-spacecharacterislocatedinposition:",x.start())

x=re.split("\s",str,1)
print("Splitthestringintheoccuranceoffirstwhite-space:",x)

x=re.sub("\s","9",str)
print("Eachwhite-spaceisreplacedwith9digit:",x) print("	")

# Metacharacters x=re.findall("[a-g]",str)
print("Thelettersinbetweenatoginthestring:",x)

x=re.findall("spain$",str) if(x):
print("\n",str,":Yes,thisstringendswith'spain'word") else:

print("\n No match ") x=re.findall("^The",str) if(x):
print("\n",str,":Yes,thisstringstartswith'The'word") else:
print("\nNomatch")

str1="Theraininspainfallsmainlyintheplain" x=re.findall("ai*",str1)
print("\nAllaimatchingcharacters:",x) if(x):
print("Yes,thereisatleastonematch") else:
print("Nomatch")

x=re.findall("all{1}",str1)
print("\nThestringwhichcontains'all':",x) if(x):
print("Yes,thereisatleastonematch") else:
print("Nomatch")

str2="Thatwillbe59dollars" x=re.findall("\d",str2)
print("\nDigitsinthestring:",x)

x=re.findall("do...rs",str2)
print("\nDotmetacharactermatchesanycharacter:",x)


============OUTPUT==========
Searchofstring'ai':['ai','ai']
Thefirstwhite-spacecharacterislocatedinposition:3
Splitthestringintheoccuranceoffirstwhite-space:['The','raininspain'] Each white-space is replaced with 9 digit:The9rain9in9spain
------------------------------------------------------------------------------
The letters in between a to g in the string: ['e', 'a', 'a'] Theraininspain:Yes,thisstringendswith'spain'word Theraininspain:Yes,this string starts with'The' word All ai matching characters: ['ai', 'ai', 'a', 'ai', 'ai']
Yes,thereisatleastonematch
Thestringwhichcontains'all':['all'] Yes, there is atleast one match
Digitsinthestring:['5','9']
Dotmetacharactermatchesanycharacter:['dollars']


Program2:Demonstrateuseofadvancedregularexpressionsfor-data validation.


#importingrelibrary import re
p=input("Enteryourpassword:") x=True
whilex:
if(len(p)<6orlen(p)>20): break
elifnotre.search("[a-z]",p): break
elifnotre.search("[A-Z]",p): break
elifnotre.search("[0-9]",p): break
elifnotre.search("[$#@]",p): break
elifre.search("\s",p): break
else:
print("ValidPassword") x=False
break
if x:
print("InvalidPassword")


===========OUTPUT========
Enteryourpassword:Kavita123@# Valid Password

Enteryourpassword:bcacollege Invalid Password


Program3:DemonstrateuseofList


print("PROGRAMFORBUILT-INMETHODSOFLIST\n");
demonstrate List numbers=[1,2,13,40,5] print(numbers) sum_of_numbers=sum(numbers) print("Sum=",sum_of_numbers) max_number=max(numbers) print("Max=",max_number) min_number=min(numbers) print("Min=",min_number) numbers.sort()
print("sortednumbersinascending",numbers) numbers.reverse()
print("sortednumbersindescending",numbers) numbers.append(6)
print("Updatednumbers",numbers) numbers.remove(13) print("Removed",numbers) numbers.clear()
print("Listafterclear",numbers)


==========OUTPUT========
PROGRAMFORBUILT-INMETHODSOFLIST

[1,2,13,40,5]
Sum=61
Max=40
Min=1
sortednumbersinascending[1,2,5,13,40]
sortednumbersindescending[40,13,5,2,1]
Updatednumbers[40,13,5,2,1,6]
Removed[40,5,2,1,6] List after clear []




Program4:DemonstrateuseofDictionaries


#deomstrate Dictionary person={"name":"Amit","age":"21","city":"Bangaluru","occupation":"student"}

#accessvaluesinthedictionary print(person["name"]) print(person["age"]) print(person["city"]) print(person["occupation"])

#modify values in the dictionary person["age"]=25 person["occupation"]="Engineer" print(person)

#addanewkey-valuepairtothedictionary person["country"]="India"
print(person)

#removeakey-valuepairfromdictonary del person["city"]
print(person)

#check if key-value exist in the dictionary if "occupation" in person: print("occupation:",person["occupation"])




============OUTPUT==========
Amit 21
Bangaluru student
{'name':'Amit','age':25,'city':'Bangaluru','occupation':'Engineer'}
{'name':'Amit','age':25,'city':'Bangaluru','occupation':'Engineer', 'country': 'India'}
{'name':'Amit','age':25,'occupation':'Engineer','country':'India'} occupation: Engineer


Program5:CreateSQLiteDatabaseandperformoperationson tables


importsqlite3
#createaconnectiontoaSqlitedatabase conn=sqlite3.connect('test.db')
#createacursorobject cursor=conn.cursor()
#createatable
cursor.execute("createtableemp2(idinteger,nametect)") #insert a record into the tables
cursor.execute("insert into emp2(id,name) values(101,'ravi')") cursor.execute("insert into emp2(id,name) values(102,'raj')") cursor.execute("insertintoemp2(id,name)values(103,'ramesh')") print("\nDisplaying the emp2 table")
cursor.execute("select*fromemp2") rows=cursor.fetchall()
forrowinrows: print(row)
print("\nafterupdateanddeletetherecordsinthetable") # update records in the table
cursor.execute("updateemp2setname='Akash'whereid=101") #delete a record from the table
cursor.execute("deletefromemp2whereid=103") print("Displaying the emp2 table") cursor.execute("select *from emp2") rows=cursor.fetchall()
forrowinrows: print(row)

#drop the table print("\nTableisdroped...")
cursor.execute("droptableemp2") #commit the transaction conn.commit()
#closethecursorandtheconnections cursor.close()
conn.close()

=========OUTPUT=======
Displayingtheemp2table (101, 'ravi')
(102,'raj')
(103,'ramesh')

afterupdateanddeletetherecordsinthetable Displaying the emp2 table
(101,'Akash')
(102,'raj')

Tableisdroped...


Program6:CreateaGUIusingTkintermodule


importtkinterastk
from tkinter import messagebox #functiontohandlebuttonclickevent def show_message():
messagebox.showinfo("Hello","welcometotheGUI")


#create the main window window=tk.Tk() window.title("My GUI") window.geometry("300x200")

#create label widget label=tk.Label(window,text="Hello,world") label.pack()

#createabuttonwidget
button=tk.Button(window,text="click me",command=show_message) button.pack()

#startthemaineventloop window.mainloop()




=========OUTPUT==========






Program7:Demonstrateexceptionsinpython


try:
num1=int(input("Enter the numerator:")) num2=int(input("Enterthedenominator:")) result=num1/num2
print("Result:",result) except ValueError: print("Invalid input") exceptZeroDivisionError:
print("Cannotdividebyzero") else:
print("Noexceptionoccur") finally:
print("Endofprogram")

===========OUTPUT==========

Enterthenumerator:12.2 Invalid input
Endof program


Enter the numerator:10 Enterthedinominator:0 Cannot divide by zero End of program


Program8:DrawingLinechartandBarchartusingMatplotlib


importmatplotlib.pyplotasplt # Data
x=[2,3,4,6,8]
y=[2,3,4,6,8]
#Plotthelinechart plt.subplot(121)
plt.plot(x,y,color='tab:red')

# Add labels and title plt.title('Line Chart') plt.xlabel('Xaxislabel') plt.ylabel('Yaxislabel')

# Show the plot plt.subplot(122) plt.title('Bar Chart') plt.xlabel('Xaxislabel') plt.ylabel('Yaxislabel')

plt.bar(x,y) plt.show()


==========OUTPUT=======








Program9:DrawingHistogramchartandPiechartusingMatplotlib


importmatplotlib.pyplotasplt import numpy as np

#Generate some random data data=np.random.randint(0,100,100)

#create histogram plt.subplot(121) plt.hist(data,bins=20)
plt.title("Histogramofrandomdata") plt.xlabel("value") plt.ylabel("frequency")
#sample data sizes=[30,25,20,15,10] labels=['A','B','C','D','E']
#create pie chart plt.subplot(122) plt.pie(sizes,labels=labels) plt.title("PIE CHART") plt.show()


==========OUTPUT=========






Program10:performarithmeticoperationsontheNumpyarrays


importnumpyasnp
#Initializingourarray
array1=np.arange(9,dtype=np.float64).reshape(3,3) #array1 = np.arange(9, dtype = np.float64)
print('FirstArray:') print(array1) print('Secondarray:')
array2=np.arange(11,20,dtype=np.float_).reshape(3,3) #array2 = np.arange(11,20, dtype = np.int_)
print(array2)print('\nAddingtwoarrays:') print(np.add(array1,array2))

print('\nSubtracting two arrays:') print(np.subtract(array1,array2))

print('\nMultiplying two arrays:') print(np.multiply(array1,array2))

print('\nDividing two arrays:') print(np.divide(array1,array2))


=========OUTPUT=======
FirstArray:	Secondarray:
[[0.1.2.]	[[11.12.13.]
[3.4. 5.]	[14.15.16.]
[6.7. 8.]]	[17.18.19.]]

Addingtwoarrays:
[[11.13.15.]
[17.19.21.]
[23.25.27.]]

Subtractingtwoarrays:
[[-11.-11.-11.]
[-11.-11.-11.]
[-11.-11.-11.]]

Multiplyingtwoarrays:
[[0.12.26.]
[42.60.80.]
[102.126.152.]]

Dividingtwoarrays:
[[0.	0.083333330.15384615]
[0.214285710.266666670.3125	]
[0.352941180.388888890.42105263]]


Program11:CreatedataframefromExcelsheetusingPandasandperform operations on data frames


importpandasaspd
#ReaddatafromexcelsheetsinanExcelfile
data=pd.read_excel('file.xlsx',sheet_name='kavita') print("\n**Displaying Data from DataFrames**\n") print(data)
print("\n**OPERATIONS ON DATAFRAMES**\n") print("\n1.ViewthefirstfewrowsoftheDataFrame:") print(data.head())
print("\n2.NumberofrowsandcolumnsintheDataFrame:",end="") print(data.shape)
print("\n3.Filtereddata(Agecolumn<25):") filtered_data =data[data['Age'] < 25] print(filtered_data)
print("\n4.SortDataFramebasedon'Age'colinascendingorder:") sorted_data = data.sort_values(by='Age', ascending=True) print(sorted_data)
print("\nProgramClosed...")


=========OUTPUT=========
**DisplayingDatafromDataFrames**

name
Age
marks

0	kiran
23
70

1	savita
20
90

2	kavya
25
80

3	sagar
18
70

4	sumit
21
56

5	sanket
22
50

6	akash
24
70

7	ramesh
26
40

8	ravi
27
45

9	soumya
28
90

10shilpa
17
65



**OPERATIONSONDATAFRAMES**
ViewthefirstfewrowsoftheDataFrame: nameAgemarks
kiran	23	70
savita	20	90
kavya	25	80
sagar	18	70
sumit	21	56

NumberofrowsandcolumnsintheDataFrame:(11,3)


Filtereddata(Agecolumn<25): nameAgemarks
kiran	23	70
savita	20	90
sagar	18	70
sumit	21	56
sanket	22	50
akash	24	70
10shilpa	17	65

SortDataFramebasedon'Age'colinascendingorder:


name
Age
marks

10
shilpa
17
65

3
sagar
18
70

1
savita
20
90

4
sumit
21
56

5
sanket
22
50

0
kiran
23
70

6
akash
24
70

2
kavya
25
80

7
ramesh	26
40

8
ravi	27
45

9
soumya	28
90



ProgramClosed...

9
soumya	28
90



ProgramClosed...