Computer Program (BCA)

Thursday, May 7, 2020

MULTIPLICATION TABLE USING 'C'

#include <stdio.h>

int main()

{

int num, i = 1,j;

printf("Enter Number:");

scanf("%d", &num);

printf("enter the digit");

scanf("%d",&j);

printf("Multiplication table of %d: ", num);

while (i <= j)

{

printf(" %d x %d = %d\n", num, i, num * i);

i++;

}

return 0;

}

output:

Tuesday, November 27, 2018

Introduction to Python

Introduction to Python

Python
Major implementations

Paradigm	Object-oriented, imperative, functional, procedural, reflective
Designed by	Guido van Rossum
Developer	Python Software Foundation
First appeared	1990; 28 years ago^[1]

Stable release	3.7.1 / 20 October 2018; 38 days ago^[2] 2.7.15 / 1 May 2018; 6 months ago^[3]
Typing discipline	Duck, dynamic, strong; and since version 3.5: Gradual^[4]
License	Python Software Foundation License
Filename extensions	.py, .pyc, .pyd, .pyo (prior to 3.5),^[5] .pyw, .pyz (since 3.5)^[6]
Website	www.python.org
CPython, IronPython, Jython, MicroPython, Numba, PyPy, Stackless Python
Dialects
Cython, RPython
Influenced by
ABC,^[7] ALGOL 68,^[8] APL^[9] C,^[10] C++,^[11]CLU,^[12] Dylan,^[13] Haskell,^[14] Icon,^[15]Java,^[16] Lisp,^[17] Modula-3,^[11] Perl, Standard ML^[18]
Influenced
Boo, Cobra, CoffeeScript,^[19] D, F#, Falcon, Genie,^[20] Go, Apache Groovy, JavaScript,^[21]^[22] Julia,^[23] Nim, Ring,^[24]Ruby,^[25] Swift^[26]
Python Programming at Wikibooks

Python is an interpreted high-level programming language for general-purpose programming. Created by Guido van Rossum and first released in 1991, Python has a design philosophy that emphasizes code readability, notably using significant whitespace. It provides constructs that enable clear programming on both small and large scales.^[27] In July 2018, Van Rossum stepped down as the leader in the language community after 30 years.^[28]^[29]

Python features a dynamic type system and automatic memory management. It supports multiple programming paradigms, including object-oriented, imperative, functional and procedural, and has a large and comprehensive standard library.^[30]

Python interpreters are available for many operating systems. CPython, the reference implementation of Python, is open source software^[31] and has a community-based development model, as do nearly all of Python's other implementations. Python and CPython are managed by the non-profit Python Software Foundation.

Polymorphism in Python

Polymorphism in Python

Sample code:-

N.B:- Indentation is most important for python programing.

class dog:

def swim (self):

print("the dog is swimming")

def swim_backwards (self):

print("the dog is swimming backwards")

def colour (self):

print("the dog's colour is black")

class cat:
def swim (self):
print("the cat is swimming")
def swim_backwards (self):
print("the cat is swimming backwards")
def colour (self):
print("the cat's colour is brown")

tom=dog()

tom.colour

tomy=cat()

tomy.colour

for animal in (tom,tomy):

animal.swim()

animal.swim_backwards()

animal.colour()

def in_water(aqua):

aqua.swim()

in_water(tom)

in_water(tomy)

Write a python program to find area of a rectangle using class and object. & Write a python program to find area of a circle using math module and class and object.

Write a python program to find area of a rectangle using class and object.

N.B:- Indentation is most important for python programing.

class rectangle:
def_ _init_ _(self,length,breadth):
self.length=length
self.breadth
def area(self):
return self.length*self.breadth
a=int(input("enter length:"))
b=int(input("enter breadth:"))
obj=rectangle(a,b)
print("area of rectangle:",obj.area())

LOOP (Patterns)

Patterns

Python program to print following patterns.

* * * * >>>for i in range (1,6):

* * * * print (" ")

* * * * for j in range (1,5):

* * * * print "*",

* >>>for i in range (1,5):

* * print (" ")

* * * for j in range(i):

* * * * print "*",

1 >>>for i in range (1,6):

1 2 print (" ")

1 2 3 for j in range (1,i):

1 2 3 4 print j,

1 >>>num=1

2 3 >>>for i in range (1,5):

4 5 6 print(" ")

7 8 9 10 for j in range(0,i):

print num,

num=num+1

Write a Python program to find whether an entered number is positive, negative or zero using nested is statements

N.B:- Indentation is most important for python programing.

>>>num1=float(input("enter number:"))
enter number: -19
>>>if (num1>0):
. . . if (num1>0):
. . . print ("positive")
. . . else:
. . . print("zero")
. . . else:
. . . print ("negative")
. . .
negative(output)

Write a Python program to find smallest of three values using "and" logical operator.

Write a Python program to find smallest of three values using "and" logical operator.

N.B:- Indentation is most important for python programing.

>>>num=10

>>>num=20

>>>num=30

>>>if((num1<num2)and(num1<num3)):

. . . smallest=num1

. . . elif((num2<num1)and(num2<num3)):

. . . smallest=num2
. . . else:
. . . smallest=num3
. . .
>>>print " the smallest number between ",num1,",",num2,"and",num3,"is",smallest
The smallest number between 10,20 and 30 is 10(output)

Example of string constructor in Python

String constructor

>>>char1="he"

>>>char2="llo"

>>>print(char1+char2)

hello(output)

Example of summation of two values in Python.

Summation of two values

>>>num1=float(input("enter no:"))
enter no: 10
>>>num2=float(input("enter next no:"))
enter next no: 20
>>>print(num1+num2)
30.3(output)

Example:-

>>> 2+3

5(output)

>>>5-2

3(output)

>>>5*2

10(output)

>>>2**3

8(output)

>>>5*2+3

13(output)

>>>15//3

5(output)

Example python programs

This is the first video in AMEER FAZAL Python Tutorial Video Series. Python is a very popular programming language. In this introductory video AMEER FAZAL was discussing little history of the language to basic information about it and then basic arithmetic operations. The tutorial uses Python 3.5.0, the very latest version and the computer is running on an Ubuntu 14.04 LTS Operating System.

Stay with us for other python programing...