OOP can get confusing
in Java all classes derive/inherit one class. this is the object class. one of the methods in the object class is the toString() method this method converts the object to a string (a string is like a sentence). because all classes inherit object they all have the toString() method.
now here is the funny part. there is a Java class String(see above if you don't know what a string is) because it is a java class it inherits object. so you can call the toString() method on a string. In other words you can convert a string to a string
that's OOP for you
now here is the funny part. there is a Java class String(see above if you don't know what a string is) because it is a java class it inherits object. so you can call the toString() method on a string. In other words you can convert a string to a string
that's OOP for you
So according to you, f(x)=2x should be undefined at x=0, because since its output is the same as its input there, what's the point of defining it?
When the toString() method says that any object an be converted to string, then why not that any object be string itself. I agree with hamsterman
closed account (o3hC5Di1)
Now now gentlemen, let's not come down too harsh on Mr. Parsons - I'm sure we could all see how one would find it odd at first that a String class has a toString() member function without knowing the underlying reason. :)
All the best,
NwN
All the best,
NwN
closed account (1yR4jE8b)
A String in Java isn't a primitive type, so System.out.println(stringVar) calls the toString() method. If the class didn't have it...that would be brain dead.
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