6. Suppose for a school there are three types of personnels: Student can only park in...

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6. Suppose for a school there are three types of personnels: Student can only park in Lot 1; Faculty can park in Lot 1 and 2; Service can park in any parking lots. One way to achieve this is by using conditional as following. public class PersonnelType { 1; 3; public static final int STUDENT public static final int FACULTY = 2; public static final int SERVICE private int typeCode; public PersonnelType (int typeCode) { this.typeCode = typeCode; } public int getTypeCode () { return typeCode; = } Personnel Type"); public boolean canParkInLot (int i) { switch (getTypeCode ()) { case STUDENT: lot + ": } case FACULTY: return (i==1); default: case SERVICE: } return (i==1) | (i==2); return true; Rewrite the above method using Polymorphism (either inheritance or implementation) so that conditionals are no longer needed. You can use the following class to test your implementation. throw new RuntimeException ("Unexpected public class PersonnelTester { public static void canParkInLot (Personnel [] personnels) { for (Personnel person: personnels) { for (int lot=1;lot<=3;lot++) { System.out.println (person.getType () + + person.canParkInLot (lot)); can park in Lot " + } public static void main(String[] args) { Personnel [] personnels = new Personnel [3]; personnels [0] = new Student (); personnels [1] = new Faculty(); personnels [2] = new Service (); canPark InLot (personnels); } 6. Suppose for a school there are three types of personnels: Student can only park in Lot 1; Faculty can park in Lot 1 and 2; Service can park in any parking lots. One way to achieve this is by using conditional as following. public class PersonnelType { 1; 3; public static final int STUDENT public static final int FACULTY = 2; public static final int SERVICE private int typeCode; public PersonnelType (int typeCode) { this.typeCode = typeCode; } public int getTypeCode () { return typeCode; = } Personnel Type"); public boolean canParkInLot (int i) { switch (getTypeCode ()) { case STUDENT: lot + ": } case FACULTY: return (i==1); default: case SERVICE: } return (i==1) | (i==2); return true; Rewrite the above method using Polymorphism (either inheritance or implementation) so that conditionals are no longer needed. You can use the following class to test your implementation. throw new RuntimeException ("Unexpected public class PersonnelTester { public static void canParkInLot (Personnel [] personnels) { for (Personnel person: personnels) { for (int lot=1;lot<=3;lot++) { System.out.println (person.getType () + + person.canParkInLot (lot)); can park in Lot " + } public static void main(String[] args) { Personnel [] personnels = new Personnel [3]; personnels [0] = new Student (); personnels [1] = new Faculty(); personnels [2] = new Service (); canPark InLot (personnels); }

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