Python String format() Method

Program 1

rno=101
name="Vishal Sharma"
age=34
salary=50000
str="Your Roll No {rn}  and Name {nm} and Age {ag} and Salary {sl}"
str=str.format(rn=rno,nm=name,ag=age,sl=salary)
print(str)

Program 2

rno=int(input("Enter Roll No"))
name=input("Enter Name")
age=int(input("Enter Age"))
salary=int(input("Enter Salary"))

str="Roll No={} , Name={}, Age={} , Salary={}"
str=str.format(rno,name,age,salary)
print(str)

Program 3

a=int(input("Enter First Number"))
b=int(input("Enter Second Number"))
c=a+b
str=" Addition of {0} and {1} is {2} "
str=str.format(a,b,c)
print(str)