Revisit Lab Question 3 andLab Question 4 in this topic. In QtSpim, define parameters for the cache, and variables to read, store, and access words as described in the Lab Questions. Implement the scenario described in DQ 3 and calculate the hit ratio. Reference the word 5 times when it is in memory and 5 times when it is not. Calculate the averages for each case and report. How does your simulation compare with your answer in Lab Question 3

8. create an abstract student class for parker university. the class contains fields for student id number, last name, and annual tuition. include a constructor that requires parameters for the id number and name. include get and set methods for each field; the settuition() method is abstract. create three student subclasses named undergraduatestudent, graduatestudent, and studentatlarge, each with a unique settuition() method. tuition for an undergraduatestudent is $4,000 per semester, tuition for a graduatestudent is $6,000 per semester, and tuition for a studentatlarge is $2,000 per semester. write an application that creates an array of at least six objects to demonstrate how the methods work for objects for each student type. save the files as student. java, undergraduatestudent. java, graduatestudent. java, studentatlarge. java, and studentdemo. java.