Question

For instance,

class ClassOne{

int y = 3
int x = 2

void foo(){
--y;
}
void bar(){
y--;
}
void tesla(){
int y = 10;
}
}

As far as I understand, methods will change class variables in that way:

1. foo() will do nothing on either variables
2. bar() will decrease y var by 1, so y=2
3. tesla() will create private or protected variable y which can be accessible only inside this tesla() method.

I am not sure about third one, please comment, did I understand it right?

Answer 1

Both foo and bar will decrement the objects y variable by one – thus achieve the same effect. tesla will create a local variable y for that method. You will probably get a warning.