Please , correct answers only

Examine the following UML Class Diagram. Please notice that bold italic stands for abstract in UML. Class diagrams. I krek = 7 days I month = 30 doys 1 yeor is 365 doys Alditionaby, remember that the income of an Employee is the salary, and the income of a student is the allowonce: 4-1 Create the class hierarchy using lava programming languages. Notice that the content of the muthods must also be completed at this stage. As an example, calculateBirthYear0 should have a body Student and now Employee. b.) Crote a lest hames/run dass named Test.java. C) Wiain Feat jeve, ceate an Kmployee named leck who is 30 vears old. lack works ak a Computee Froineer ens sets fro (poundi) per dey