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LooseCoupling.java
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LooseCoupling.java
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public class LooseCoupling {
public static void main(String[] args) {
Box b = new Box(5, 5, 5);
// System.out.println(b.volume); // This class has no direct access to the
// outside class Box
System.out.println(b.getVolume()); // The object state (private int volume) cannot be coupled directly by this
// class (LooseCoupling)
}
}
class Box {
private int volume;
Box(int length, int width, int height) {
this.volume = length * width * height;
}
public int getVolume() {
return volume;
}
}
// The class Box is well poised for future expansion, we can have setter
// methods, add a private method to calculate volume outside the constructor
// The whole point is that we can control the various way that the outside class
// can couple with our Box class.
// As long as the outside class cannot get "inside" and tightly couple with the
// Box object state, then the relationship between them is loosly-coupled.