Concatenate two strings using Operator Overloading in Python
Operator Overloading refers to using the same operator to perform different tasks by passing different types of data as arguments. To understand how ‘+’ operator works in two different ways in python let us take the following example
Python3
# taking two numbersa = 2b = 3 # using '+' operator add themc = a+b # printing the resultprint("The sum of these two numbers is ", c) |
Output:
The sum of these two numbers is 5
In this example we used ‘+’ operator to add numbers, now let us take one more example to understand how ‘+’ operator is used to concatenate strings.
Python3
# taking two strings from the usera = 'abc'b = 'def' # using '+' operator concatenate themc = a+b # printing the resultprint("After Concatenation the string becomes", c) |
Output:
After Concatenation the string becomes abcdef
For a better understanding of operator overloading, here is an example where a common method is used for both purposes.
Python3
# let us define a class with add methodclass operatoroverloading: def add(self, a, b): self.c = a+b return self.c # creating an object of classobj = operatoroverloading() # using add method by passing integers# as argumentresult = obj.add(23, 9)print("sum is", result) # using same add method by passing strings# as argumentresult = obj.add("23", "9")print("Concatenated string is", result) |
Output:
sum is 32 Concatenated string is 239
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