Instances of a class mean the objects created for a particular class. A single class can have multiple objects of it. Here, we will find the count of the number of instances of a class in Python.
Approach:
- Whenever an object is created, the constructor of that particular class is called.
- Constructor is a function whose name is the same as that of class name and it doesn’t have any return type. A constructor is used to initialize the variables of a class.
- Whenever a constructor is called which means a new object is created, we just have to increment a counter that will keep track of the no. of objects that particular class has.
Below is the implementation:
Python3
# code class Lazyroar: # this is used to print the number # of instances of a class counter = 0 # constructor of Lazyroar class def __init__(self): # increment Lazyroar.counter += 1 # object or instance of Lazyroar class g1 = Lazyroar() g2 = Lazyroar() g3 = Lazyroar() print(Lazyroar.counter) |
Output:
3
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