Question

Hi, the language is Java.

Learning Outcomes and Introduction In this lab assignment you will practice: . applying access modifiers using getters and setters to mediate access using getters and setters to create derived attributes using static variables and methods testing code using a unit testing approach . For each of the tasks in this lab, you will create a new class or create an improved version of one of the classes from the previous lab. Remember to document all public fields and methods with JavaDoc, and write unit tests in a TestingObjects class. Note that UML shows static fields and methods with underlines. In the "Improved" class tasks, additions from the previous lab are marked in green, and removals are marked in red and crossed out. Methods that have modified functionality are marked in yellow, and the changes are described below the UML diagram.

Answer 1

This code below is solution to your problem.

Person Class (you didn't provide it, so I just assumed a sample)

package ForUML;

public class Person {

public String name;
public String phone_no;

public Person(String name, String phone_no) {
this.name = name;
this.phone_no = phone_no;
}

  
  
public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getPhone_no() {
return phone_no;
}

public void setPhone_no(String phone_no) {
this.phone_no = phone_no;
}
  
  

}

Car Class:

package ForUML;

public class Car {

public String make;
public String model;
public int year;
public Person owner;
private long odometer;

public Car(String make, String model, int year) {
this.make = make;
this.model = model;
this.year = year;
}

public Car() {
}
  
  
public long drive(long odometer){
this.odometer= odometer;
return this.odometer;
}
public long readOdomoter(){
return this.odometer;
}

@Override
public String toString() {
return "Car{" + "make=" + make + ", model=" + model + ", year=" + year + ", odometer=" + odometer + '}';
}
  
  
  
  

}



CarTest Class:

package ForUML;

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;

public class CarTest {

public CarTest() {
}

@BeforeClass
public static void setUpClass() {
}

@AfterClass
public static void tearDownClass() {
}

@Before
public void setUp() {
}

@After
public void tearDown() {
}

/**
* Test of drive method, of class Car.
*/
@Test
public void testDrive() {
System.out.println("drive");
long odometer = 0L;
Car instance = new Car("", "", 0);
long expResult = 0L;
long result = instance.drive(odometer);
assertEquals(expResult, result);

}

/**
* Test of readOdomoter method, of class Car.
*/
@Test
public void testReadOdomoter() {
System.out.println("readOdomoter");
Car instance = new Car("", "", 0);

long expResult = 0;
long result = instance.readOdomoter();
assertEquals(expResult, result);

}

/**
* Test of toString method, of class Car.
*/
@Test
public void testToString() {
System.out.println("toString");
Car instance = new Car();
// String expResult = null;
String result = instance.toString();
assertTrue(result.contains("model"));

}

}

OUTPUT:

Test Results X ForUML. CarTest x Tests passed: 100.00% All 3 tests passed. (0.359 s) drive toString readodomoter 0 X

Comment down for any query.
Please give a thumbs up!