Question

Solve this using Java for an Intro To Java Class.

Provided files:

Person.java

/**
 * Models a person
 */
public class Person
{
    private String name;
    private String gender;
    private int age;
    
    /**
     * Consructs a Person object
     * @param name the name of the person
     * @param gender the gender of the person either 
     * m for male or f for female
     * @param age the age of the person
     */
    public Person(String name, String gender, int age)
    {
        this.name = name;
        this.gender = gender;
        this.age = age;
    }
    
    /**
     * gets the age of this Person
     * @return the age of this Person
     */
    public int getAge()
    {
        return age;
    }
    
    /**
     * gets the gender of this Person
     * @return the gender of this Person
     */
    public String getGender()
    {
        return gender;
    }
    
    /**
     * gets the name of this Person
     * @return the name of this Person
     */
    public String getName()
    {
        return name;
    }
    
    /**
     * Increases the age of this Person by 1 year
     */
    public void birthday()
    {
        age = age + 1;
    }
}

Starter File for solution:

/**
* Models an Insurance client
*/
public class Insurance
{
private Person client;

/**
* Constructs an Insurance object with the given Person
* @param p the Person for this Insurance
*/
public Insurance(Person p)
{
client = p;
}
}

And here is the tester file:

/**
 * Test the Insurance class
 */
public class InsruanceTester
{
    public static void main(String[] args)
    {
        Insurance policy = new Insurance(
           new Person("Carlos", "m", 15));
        System.out.println(policy.clientAge());
        System.out.println("Expected: 15");
        policy.incrementAge();
        System.out.println(policy.clientAge());
        System.out.println("Expected: 16");
        System.out.println(policy.clientGender());
        System.out.println("Expected: m");
           
        policy = new Insurance(
           new Person("Ashwanee", "f", 25));
        System.out.println(policy.clientAge());
        System.out.println("Expected: 25");
        policy.incrementAge();
        System.out.println(policy.clientAge());
        System.out.println("Expected: 26");
        System.out.println(policy.clientGender());
        System.out.println("Expected: f");
        
    }
}

Answer 1

Hi,

I have implemented the required methods. Highlighted the code changes below.

public class Person
{
private String name;
private String gender;
private int age;
  
/**
* Consructs a Person object
* @param name the name of the person
* @param gender the gender of the person either
* m for male or f for female
* @param age the age of the person
*/
public Person(String name, String gender, int age)
{
this.name = name;
this.gender = gender;
this.age = age;
}
  
/**
* gets the age of this Person
* @return the age of this Person
*/
public int getAge()
{
return age;
}
  
/**
* gets the gender of this Person
* @return the gender of this Person
*/
public String getGender()
{
return gender;
}
  
/**
* gets the name of this Person
* @return the name of this Person
*/
public String getName()
{
return name;
}
  
/**
* Increases the age of this Person by 1 year
*/
public void birthday()
{
age = age + 1;
}
}

/**
* Models an Insurance client
*/
public class Insurance
{
private Person client;
/**
* Constructs an Insurance object with the given Person
* @param p the Person for this Insurance
*/
public Insurance(Person p)
{
client = p;
}
public int clientAge(){
   return client.getAge();
}
public String clientGender(){
   return client.getGender();
}
public void incrementAge(){
   client.birthday();
}
}

/**
* Test the Insurance class
*/
public class InsruanceTester
{
public static void main(String[] args)
{
Insurance policy = new Insurance(
new Person("Carlos", "m", 15));
System.out.println(policy.clientAge());
System.out.println("Expected: 15");
policy.incrementAge();
System.out.println(policy.clientAge());
System.out.println("Expected: 16");
System.out.println(policy.clientGender());
System.out.println("Expected: m");

policy = new Insurance(
new Person("Ashwanee", "f", 25));
System.out.println(policy.clientAge());
System.out.println("Expected: 25");
policy.incrementAge();
System.out.println(policy.clientAge());
System.out.println("Expected: 26");
System.out.println(policy.clientGender());
System.out.println("Expected: f");
  
}
}

Output:

15
Expected: 15
16
Expected: 16
m
Expected: m
25
Expected: 25
26
Expected: 26
f
Expected: f