Implement the example programs shown in the lecture on Monday, 2 May.

These programs consist of the following interfaces, classes and methods:

interface ObjectComparable with method signature compare(Object obj).

class ObjectArray with the methods append(Object obj), sort().

class MyObject with the method compare(Object obj)

Building on these programs, create an additional interface ObjectDisplayable to be implemented by the class MyObject and that is used by the class ObjectArray in a public method displayAll(). The interface ObjectDisplayable consists of a single method signature void display() that is implemented in the class MyObject. Also implement appropriate test programs.

You will have two packages. The first package contains the classes: ObjectComparable , ObjectDisplayable, ObjectArray. The second package contains the classes MyObject and TestObject.