No Coupling is not a part of encapsulation, coupling use encapsulation, where the well-encapsulation can be achieved without loose coupling. For example, I’ve a DSLR Camera(MyCamera) and two lenses of Different types which i switch between quite often as per my photography shoots requirement.
So lets say I have a Camera MyCamera & having 1 lens to take wide angle pictures and 2nd to take really close photos of any object.
Check the following code:
interface Lens { }
class MacroLens implements Lens { }
class WideAngleLens implements Lens { }
public class MyCamera{
private Lens lens;
MyCamera (Lens lens) {
this.lens = lens;
}
}The above code demonstrate well-encapsulation + loose coupling with each other. I can switch lenses easily from Wide Angle Lens to Macro Lens. If I were use following code:
public class MyCamera{
private WideAngleLens lens;
MyCamera(WideAngleLens lens){
this.lens = lens;
}
}