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.

Advantages and disadvantages of binary system

Which of these options are the correct sequence of actions for content to be copied and pasted? select content, click the copy button, click the paste button, and move the insertion point to where the content needs to be inserted. click the copy button, select the content, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, click the copy button, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, move the insertion point to where the content needs to be inserted, click the copy button, and click the paste button.

What is one reason why indoor air pollution has become an increasing problem.