CASTING

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Python - Casting

Casting is when you convert a variable value from one type to another. This is, in Python, done with functions such as int() or float() or str().

Specify a Variable Type :

There may be times when you want to specify a type on to a variable. This can be done with casting. Python is an object-orientated language, and as such it uses classes to define data types, including its primitive types.

Casting in python is therefore done using constructor functions:

• int() - constructs an integer number from an integer literal, a float literal (by rounding down to the previous whole number), or a string literal (providing the string represents a whole number)


• float() - constructs a float number from an integer literal, a float literal or a string literal (providing the string represents a float or an integer)


• str() - constructs a string from a wide variety of data types, including strings, integer literals and float literals

##Integers example :

x=int(1)
y=int(2.5)
z=int("6")
print(x)
print(y)
print(z)

===o/p===
1
2
6

## float example :

x=float(1)
y=float(25)
z=float("6")
print(x)
print(y)
print(z)

====o/p====
1.0
25.0
6.0

## strings example :

x=str("a")
y=str(23)
z=str("apple")
w=str(2.6)
print(x)
print(y)
print(z)
print(w)


===o/p===

a
23
apple
2.6