This is the question:
Part 1 (50 marks)
a) Write the Java code for a class called Patient.
• The Patient class should have the following four private instance variables:
o name
o iDNumber
o age
o gender
Choose the correct type for each of the instance variables.
• Include a default constructor.
• Include a constructor that accepts four parameter values: name, iDNumber, age, and gender.
• Include get and set methods for each of the instance variables.
• Include a method called print() that prints the value of all the instance variables to the screen, e.g.
Patient name: Joe Bloggs
IDNumber: 520
Age: 86
Gender: Male
b) Write the Java code for a class called PatientTestApplication (containing a public static void main(String [] args) method) which tests the two constructors, the get and set methods, and the print() method of the Patient class.
• This class should create two objects of the class Patient, using each constructor in the Patient class definition.
• It should then test all the get and set methods on each object.
• It then uses the print() method on both objects to print the object’s details to screen.
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This is what i have got so far...
Code:
public class Patient
{
//Attributes: Object characteristics
private String name;
private int iDNumber;
private int age;
private String gender;
public Patient()
{
name = "none";
iDNumber = 0;
age = 0;
gender = "none";
}
public Patient(String n, int i, int a, String g)
{
name = n;
iDNumber = i;
age = a;
gender = g;
}
//Methods: object behavior, mutator method
public void setName(String n)
{
name = n;
}
//accessor methods
public String getName()
{
return name;
}
//Methods: object behavior, mutator method
public void setIdNumber(int i)
{
iDNumber = i;
}
//accessor methods
public int getiDNumber()
{
return iDNumber;
}
//Methods: object behavior, mutator method
public void setAge(int a)
{
age = a;
}
//accessor methods
public int getAge()
{
return age;
}
//Methods: object behavior, mutator method
public void setGender(String g)
{
gender = g;
}
//accessor methods
public String getGender()
{
return gender;
}
}
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And this is my test... it doesnt seem to work properly and I dont know why :(
public class PatientTest
{
//this is an array of strings
public static void main(String [] args){
Patient p1 = new Patient("Joe Bloggs", 4125, 45, "Male");
Patient p2 = new Patient();
// new set methods to overwrite the old ones on patient 2
System.out.println("Name:"+ p2.getName());
System.out.println("iDNumber:"+ p2.getiDNumber());
System.out.println("Age:"+ p2.getAge());
System.out.println("Gender:"+ p2.getGender());
p2.setName("Larry");
p2.setIdNumber(12345);
p2.setAge(25);
p2.setGender("male");
//gets code from patient and gives values
System.out.println("Name:"+ p1.getName());
System.out.println("iDNumber:"+ p1.getiDNumber());
System.out.println("Age:"+ p1.getAge());
System.out.println("Gender:"+ p1.getGender());
//this is default code here which has no values in patient
System.out.println("Name:"+ p2.getName());
System.out.println("iDNumber:"+ p2.getiDNumber());
System.out.println("Age:"+ p2.getAge());
System.out.println("Gender:"+ p2.getGender());
}
}
