February 6, 2021February 6, 2021 ocjp

Day 2:Conditions ,Decision Making in Python

Decision Making, Python, Python Operators

In C,C++,Java etc there are main three Decision Making blocks. If, Switch and Conditional Operators (?). In Python there is If . After Python 2.5 We can use two versions of If.

• Single Line If (Like Turnery/Conditional Operator)
• If Block

Following Example shows the use of both

x=2
y=3
#If Block
if x> y:
    z=x
else:
    z=y
print(z)


#Single Line If
x= x if x>y else y  #Like Conditional Operator/Turnary Operator
print(x)

#Other Relational Operators <, <=, >, >= ,== , != 

if x==y:
    print("Same")
else:
    print("Not Same")

if x!=y:
    print("Different")
else:
    print("Equal Values")

Output for the above program will be.

3
3
Same
Equal Values
>>> 

In Python there is no Switch..Case Statement is supported. But It can be achieved by if else block.

Following if the Example for if.elif and Nested if

x=int(input("Enter X"))
y=int(input("Enter Y"))
z=int(input("Enter Z"))

if x>y:
    if x>z:
        print("X is Great")
    else:
        print("Z is Great")
else:
    if y>z:
        print("Y is Great")
    else:
        print("Z is Great")
        

#Another Way

if x>y and x>z:
    print("X is Greater")
elif(y>z):
    print("Y is Greater")
else:
    print("Z is Greater")