Design an abstract Ship class that the following members:  A field for the name of the ship (a string).  A field for the year that the ship was built (an integer).  A constructor and appropriate accessors and mutators.  A toString method that displays the ship’s name and the year it was built.

Due to error while posting the answer, the code snippet is attached as pdf file

Explanation:

The code is written in Java and it is an abstract class.

It starts by defining abstract class with the keyword "abstract".

Then it declare two field for shipName and shipYear.

Then a two arguments constructor is defined.

After that the setter and getter method is declared. The getter and setter is also known as accessor and mutator.

Then a String representation of Ship objects is done by overriding the to String method.

answer: internal fragmentation is the difference between the (fixed) size of a memory hole and the data within in that memory. for example, if a 1,024 byte block of memory holds 800 bytes of data, then the 224 bytes difference is considered lost to internal fragmentation.

external fragmentation occurs when the sum of memory fragments is large enough to satisfy a request, but the holes are non-contiguous and the request cannot be satisfied. this can occur when memory is dynamically allocated and freed.

explanation:

maybe when you are listing people names in a job.

i am not 100% sure