Code Explanation:
1. Class Definition
class A:
def __init__(self):
self.val = 1
This defines a class A.
The constructor __init__ is called when an object of class A is created.
It initializes the attribute val to 1.
2. Method Definition
def update(self):
self.val += 1
This method increases the value of val by 1.
3. Object Creation
a = A()
An instance a of class A is created.
a.val is now 1.
4. Calling update()
a.update()
This increments a.val from 1 to 2.
5. Printing Value
print(a.val)
Prints the current value of a.val, which is now 2.
Final Output
2
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