What happens if the declaration of C: is followed by the following declaration of its extension: Which methods are invoked if the declaration of three objects ExtC object1 = new ExtC(); C object2 =...

What happens if the declaration of C:

is followed by the following declaration of its extension:

Which methods are invoked if the declaration of three objects

ExtC object1 = new ExtC();

C object2 = new ExtC(), object3 = new ExtC();

is followed by these statements; indicate any problems that these statements may cause:

object1.process1(1000);

object1.process4(2000);

object2.process1(3000);

object2.process4(4000);

object3.process1('P');

object3.process2('Q');

object3.process3('R');