IT Programming

                   what is strings?? In python, anything that you enclose between single or double quotation marks is considered a string. A string is essentially a sequence or array of textual data. strings are used when working with unicode characters. ex. input- name="hardik" print("hello, "+name) output-  hello,hardk name="hello world" #sequence of the characters print(name[0]) print(name[1]) print(name[2]) print(name[3]) print(name[4]) output- h e e l o case changing of python 1. lower():   convert all uppercase characters in a string into lowercase. 2.upper(): converts all lowercase characters in a string into uppercase. 3.title(): convert string to title case 4.swapcase(): swap the cases of the characters in a string 5.capitalize(): convert the first characters of a string to uppercase      input- output- List of string methods in python 6.casefold(): implements caseless string method 7.center(): pad the...

                                   User - Input # In python, we can take user input directly by using  input()  function. this input function gives a return value as string/character hence we have to pass that into a variables. ex. input- a=input("enter your name: ") print("my name is", a) output- enter your name: harry my name is harry # look at this program - x=input("enter your first number : ") y=input("enter your second number: ") print(x+y) print(int(x)+int(y)) output- enter your first number : 56 enter your second number: 56   # first answer : 5656 # second answer: 112 # you are expect this program answer is 112 but its not write the real value of 5656 # reason of your computer doesn't  understood value or integer value . # than if we calculate of two, three or many number than i will program-  int(integer) x=int(input("enter your first number: ")) y=int(input("enter...

                         Type-Casting 'The  Conversion of one data type into the other data type is known as type casting in python or type  conversion in python." python supports a wide variety of functions or methods like: int(), float(), str(), ord(), tuple(), set(), list(), hex(), oct(), duct(), etc. type-casting in python  Example input- a="2" b="3" print(a+b) Output- 23 #You might be expecting that the answer will be 5. # But the answer will be 23 because the computer is considering the variables A and B as strings . Two types of type-casting- 1.  Explicit Conversion  ( means I'm doing ) The conversion of one data type into another data type, done via developer or programmer's intervention or manually as per the requirement, is knows as explicit type conversion. ex. intput-           string="67"          number = 7       ...

  I have two calculator programs code : You can easily use it on computer and mobile:- Our 1st.Question- - Create a calculator capable of performing addition , subtraction, multiplication and division operations  on two numbers. Our program code -- Input- a = int(input("enter your first number:")) b=int(input("enter your second number:")) print(a+b) print(a-b) print(a*b) print(a/b) Output- enter your first number:5 enter your second number:5 10 0 25 1.0 Our 2nd Question.: how to make best & advance calculator to include anything.? Our program code : def add(x, y):     return x + y def subtract(x, y):     return x - y def multiply(x, y):     return x * y def divide(x, y):     if y == 0:         return "Error! Division by zero!"     else:         return x / y print("Select operation:") print("1. Add") print("2. Subtract") print("3. Multiply") print("4. Divide") while True:    ...

     ' OPERATORS' - So,   'Operators are simple we already have studied this in mathematics' " python have different types of  operators for different operators, to create a calculators we required arithmetic operators." 1. Arithmetic operators- 2. Relational Operators- 3. Assignment Operators- 4. Logical Operators- 5. Bitwise Operator- 6. Membership Operators-                                               or 7. Identity Operators-       

                    Variables -- variables are like containers just like you have in your kitchen  in which you store lentils , flour & rice etc.  in python programming language 'variables' are just like those containers. that you people make containers and store data in them. and this data is stored in the memory.it is stored in it, what you call 'RAM'   Program-- what is data types-- " data type specifies the types of value a variables holds. this is required in programming to do various operations without causing an error. just like a container can contain 'Liquid' 'Solid' 'Lentils' or 'Sugar' just like that there are 'type' in python which we refer as 'data types' output-      1. Numeric data: int,  float, complex int:  7, -5 ,0 float: 7.345, -5.0, 0.00001 complex: 6+2i 2 . text data: str    str: "hello world!", "python programming" 3. Boolean data:    Boolean data ...

* COMMENTS-         Comments can be used to explain  Python code.        Comments can be used to make the code more readable.         Comment Statement can not be Execute        Comments starts with a # , and python will ignore them.     Ex.      # this is a comment                  print ("hey I am a student" )    ex.2    #this is a single line statement            input-   print("this is a print statement")            output-  this is a print statement * MULTILINE COMMENTS #It will execute a block of code if a specified condition is true. #If the condition is false then it will execute another block of code. Input- p = 7 if (p > 5):     print("p is greater than 5.") else:     print("p is not greater than 5.") OUTPU...

  # Print-   'print is function and to invoke any function we use parenthesis( ) like this   Python print() function prints the message to the screen or any other standard output device. In this article, we will cover about print() function in Python as well as it’s various operations. # String-      A String is a data structure in Python that represents a sequence of characters.      Program 1.          print("hello world")        print(6)        print("Bye")        print(15*10) After Execution-       hell0 world      6      bye      150 Program 2. print ( "Hello" ,  "how are you?" ) hello how are you?   ALL THE BEST TO ALL FUTURE PROGRAMMER. Thank you

*MODULE-                                                                      Module is like a code library ,basically modules are used to borrow someone else's code which means you can use someone else's code in your Program with the help of Modules. The main module is  the source file that runs first .  Benefit of Modules- if your are use module it'll save your time and efforts and you and you can work on some big Project. *There are Two Types- 1.Built in modules-                             these modules are ready to import and used and ships with the python interpreter there is no need to install such modules explicitly  (" There are a lot of built-in modules in Python. Some of the important ones are - Collection datetime, lo...