Code Explanation:
🔹 1. Creating the Class
class Number:
✅ Explanation
A class named Number is created.
This class will store a number and customize how the + operator behaves.
Normally, + works with integers, strings, and lists. Here, we'll make it work with our own class.
Current Memory
Class
Number
🔹 2. Constructor (__init__)
def __init__(self, x):
✅ Explanation
__init__() is the constructor.
It automatically runs whenever an object is created.
It receives the value passed during object creation.
Current Memory
Waiting for Object Creation
🔹 3. Saving the Value
self.x = x
✅ Explanation
The value passed to the constructor is stored inside the object.
Each object will have its own variable named x.
Visual Representation
Object
+-----------+
| x = value |
+-----------+
Nothing is printed yet.
🔹 4. Overloading the + Operator
def __add__(self, other):
✅ Explanation
__add__() is a special (magic) method.
Python automatically calls this method whenever the + operator is used between two Number objects.
self represents the left object.
other represents the right object.
Current Memory
Number(5) + Number(8)
↓
self → Number(5)
other → Number(8)
🔹 5. Returning the Sum
return self.x + other.x
✅ Explanation
Python adds the values stored inside both objects.
Calculation
self.x
↓
5
+
other.x
↓
8
=
13
The method returns:
13
🔹 6. Creating the First Object
Number(5)
✅ Explanation
Python creates the first object.
Constructor runs:
__init__(self, 5)
Current Memory
Object 1
+-------+
| x = 5 |
+-------+
🔹 7. Creating the Second Object
Number(8)
✅ Explanation
Python creates another object.
Constructor runs:
__init__(self, 8)
Current Memory
Object 2
+-------+
| x = 8 |
+-------+
🔹 8. Applying the + Operator
Number(5) + Number(8)
✅ Explanation
Python sees that both operands are Number objects.
Instead of normal addition, Python internally calls:
Number(5).__add__(Number(8))
Which becomes:
return 5 + 8
Result
13
🔹 9. Printing the Result
print(Number(5) + Number(8))
✅ Explanation
The value returned by __add__() is printed.
Output
13
🎯 Final Output
13
.png)
Posts
0 Comments:
Post a Comment