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kotlinlang

Just a question, in terms of class design is it wrong to pass down member variables to private class methods instead of using the member directly in the method?
```
private void foo(Object obj){
obj.doSomething();
}
vs
private void foo(){
mObj.doSomething();
}
```
I am just looking for some thoughts.

Try to think about it in terms of state, ie. does `obj` belong to the _state_ of `MyClass`? If so it should be a member variable, otherwise pass it as an argument to the method.