if else statement

if else statement

When an if condition is true then the statements in if section are executed. When the condition is evaluated to false the statements in the else section will be executed

The syntax of if else statement is as follows

if(condition):
     statements  
else:
     statements

Some of the example programs on if else statement are shown in below:

Ex 1: A sample program on if else statement.

x=int(input("enter your marks:"))
if x>=25:
    print("Pass")
else:
    print("Fail")

Output

enter your marks: 34

Pass

Ex 2: A program on finding climate condition.

t=float(input("Temperature : "))
if t>30:
    print("Normal")
else:
    print("Too hot")

Output

Temperature : 43

Too hot

Ex 3 Another example program on if else statement.

str=input("Who is this : ")
if str=="Sudhakar":
    print("Oh!Hi",str)
else:
    print("ok")

Output

Who is this : Sudhakar

Oh!Hi Sudhakar

Ex 4 A program on if else statement using while loop

i=1
while(i<=10):
    if(i==6):
        print("Hello")
        pass
    else:
        print(i)
    i=i+1

Output

Hello

Ex 5: A program on evaluation of marks

marks=int(input("enter marks"))
if marks<35:
    marks+15
    print("total marks",marks+15)
else:
   marks+10
   print("total marks",marks+10)

Output

enter marks 21 #Test case 1

total marks 36

enter marks 76 #Test case 2

total marks 86

Ex 6 A program to calculate the discount and print net payable

amount=int(input("Enter amount: "))
if amount<1000:
    discount=amount*0.05
    print ("Discount",discount)
else:
    discount=amount*0.10
    print ("Discount",discount)
print ("Net payable:",amount-discount)

Output

Enter amount: 4589

Discount 458.90000000000003

Net payable: 4130.1

Ex 7: A program to find whether the given sides form a triangle or not.

x=float(input("x= "))
y=float(input("y= "))
z=float(input("z= "))
if x+y>z and x+z>y and x+z>x:
    print("Yes it forms a triangle")
else:
    print("impossible to form a triangle")

Output

x= 45 #Test case 1

y= 31

z= 20

Yes it forms a triangle

x= 24 #Test case 2

y= 25

z= 56

impossible to form a triangle

Example HTML page

VMS

if else statement

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