Suppose we have a list of classes: Student, PHDStudent, Person, Teacher, ParttimeTeacher.  Draw the class hierarchy using BlueJ and describe in a few sentences how you would relate  these classes to each other.    (I want the complete solution using the codes in bluej program also diagram) bluej

JAVA Practice Question for Midterm Write a class with a constructor that accepts a String object as its argument. The class should have a method that returns the number of vowels in the string, and another method that returns the number of consonants in the string. Demonstrate the class in a program by invoking the methods that return the number of vowels and consonants. Print the counts returned. Imagine you are developing a software package for an online shopping site that requires users to enter their own passwords. Your software requires that users’ passwords meet the following criteria:   The password should be at least six characters long. The password should contain at least one uppercase and at least one lowercase letter. The password should have at least one digit.   a program that asks the user to enter a password, then displays a message indicating whether it is valid or not.

Write in Java  a procedure or function that will have four different effects, depending on whether arguments are passed by value, by reference, by value/result, or by name.

Please help in guiding me in the necessary steps i should take when tackling this assignment, there is a main.cpp given  Objective: The main objective of this assignment is to assess students’ ability to apply the stepwise refinement process to develop a new algorithm and carry that through to the implementation of the program. Implementation must follow the top-down design approach, where the solution starts by describing the general functionality of a game. Next, more details are provided in successive steps to refine the implementation. Problem Description: Assume you are hired by a game developing company to write a new computer game for kids. This company has decided to create a version of tricky triangles with a few different rules hoping that this new game will be more entertaining. If you are unfamiliar with the original game of tricky triangle, please learn how to play. This modified version of tricky triangles that you required to create is very much like the original game.…