Experiment with a simple derivation relationship between two classes. put println statements in constructors of both the parent and child classes. do not explicitly call the constructor of the parent in the child classes. do not explicitly call the constructor of teh parent in the child. what happens? why? change the child's constructor to explicitly call the constructor of the parent. now what happens?

i need an example program in java, because i can't visualize what i am supposed to do, and i do need with that, if you could send me the sample programs i would be grateful you.