Question

(10 marks) Question 1 Class Definitions la) (5 marks) Write information on Java class called IdentityCard to represent the the identity card of a member of an organisation. For example a UWA student card. Include brief comments in your class necessary, but full Javadoc is not required. State any a. definition as assumptions you make. The class should have: four fields that capture the person's name, identity number, photo, and whether the person is a current member of the organisation; and a constructor that initialises the fields a mutator method for setting the identity number field; it should check for a reasonable input value; method for the identity number field. an accessor b) (5 marks) Write people with all UWA student card holders with access to the Computer Science building. This class should have: Java class called DoorAccess for managing all the a building. For example, particular access to a гоот оr one field to store all the IdentityCards of students with access to building a a constructor that initialises this field method that takes one identity card it from the list, returning true if the card was if the card was not present; argument and removes a. as removed and false particular student number in the access list and returns that card if found, or null otherwise method that searches for a a

Answer 1

//1 a)
class IdentityCard
{
//instance variables
private String name;
private int idenityNumber;
private Image photo;
private boolean status;
//constructor
public IdentityCard(String name,int identityNumber,Image photo,boolean status)
{
this.name=name;
this.identityNumber=identityNumber;
this.photo=photo;
this.status=status;
}
//mutator for setting identity Number
public void setIdentityNumber(int identityNumber)
{
if(identityNumber>0)
this.identityNumber=identityNumber;
}
//accessor for getting identity number
public int getIdentityNumber()
{
return this.identityNumber;
}
}
// 1 b)
class DoorAccess
{
private ArrayList<IdentityCard> idCards;
//constructor
public DoorAccess(ArrayList<IdentityCard> idCards)
{
this.idCards=idCards;
}
//checkCardRemoval
boolean checkCardRemoval(IdentityCard idCard)
{
boolean found=false;
for(int i=0;i<idCards.size();++i)
{
if(idCards.get(i).getIdentityNumber()==idCard.getIdentityNumber())
{
found=true;
break;
}
}
if(found==true)
{
idCards.remove(i);
}
return found;
}
IdentityCard search(int identityNumber)
{
for(int i=0;i<idCards.size();++i)
{
if(idCards.get(i).getIdentityNumber()==identityNumber)
{
return idCards.get(i);
}
}   
return null;
}
}