When handling collision detection / response and you need a Vector class, do you need to create that class yourself or is there a java class you can use?

A vector class should have methods like: subtract(Vector v), normalize(), dotProduct(Vector v), ...

At the moment it seems logical to use classes like java.awt.Rectangle and java.awt.Polygon to calculate collisions. Would I be right to use these classes for this purpose?

My question is not about how to implement collision detection, I know how that works. However I'm wondering what would be a correct and clean way to implement it in java since I'm fairly new to the language and to application development in general.

Does Java have a built-in Vector class suitable for handling collision detection / response? It should have methods like subtract(Vector v), normalize(), dotProduct(Vector v), ...

It seems logical to use java.awt.Rectangle and java.awt.Polygon to calculate collisions. Would I be right to use these classes for this purpose?

I understand collision detection; I'm only wondering what approach to it is idiomatic in Java. I'm new to the language and to application development in general.

When handling collision detection / response and you need a Vector class, do you need to create that class yourself or is there a java class you can use?

A vector class should have methods like: subtract(Vector v), normalize(), dotProduct(Vector v), ...

At the moment it seems logical to use classes like java.awt.Rectangle and java.awt.Polygon to calculate collisions. Would I be right to use these classes for this purpose?

-- I'm not having a question on how to implement collision detection, I know how that works. However I'm wondering what would be a correct and clean way to implement it in java since I'm fairly new to the language and to application development in general.

When handling collision detection / response and you need a Vector class, do you need to create that class yourself or is there a java class you can use?

A vector class should have methods like: subtract(Vector v), normalize(), dotProduct(Vector v), ...

At the moment it seems logical to use classes like java.awt.Rectangle and java.awt.Polygon to calculate collisions. Would I be right to use these classes for this purpose?

My question is not about how to implement collision detection, I know how that works. However I'm wondering what would be a correct and clean way to implement it in java since I'm fairly new to the language and to application development in general.