freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.md

---
id: 5e7b9f160b6c005b0e76f086
challengeType: 11
videoId: FiABKEuaSJ8
dashedName: objects-a-sample-class
---

# --question--

## --text--

What will the following program print?:

```python
class PartyAnimal:
    x = 0
    def party(self):
        self.x = self.x + 2
        print(self.x)

an = PartyAnimal()
an.party()
an.party()
```

## --answers--

So far 1

So far 2

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0

0

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2

2

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2

4

## --video-solution--

4