An introduction to object orientation-let's change the internal state of an object

I wanted to use object-oriented programming in evolution simulation, so I wrote a memo. About changing instance variables by method

sample.py


class SampleClass:
    def __init__(self):
        self.internal_state = True  #Internal state(internal_state)Set to True

    def off_internal_state(self):   #Method to set internal state to False
        self.internal_state = False 
    
    def on_internal_state(self):    #Method to set internal state to True
        self.internal_state = True
    
    def change_internal_state(self): #Method to change internal state
        if self.internal_state:         #False if true, True if False
            self.internal_state = False 
        else:
            self.internal_state = True

You now have a SampleClass class with an internal state. Let's look at the output using a method.

sample.py


sampleObj = SampleClass()

print(sampleObj.internal_state)     #=>True

sampleObj.off_internal_state()
print(sampleObj.internal_state)     #=>False

sampleObj.change_internal_state()
print(sampleObj.internal_state)     #=>True

that's all.

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