feat: adds lesson16 homework by Yemi

Author: jimoye244

lesson_16/objects/objects_app/src/main/java/com/codedifferently/lesson16/oyeyemijimoh/Department.java

@@ -0,0 +1,8 @@
+public enum Department {
+    Sales,
+    Finance,
+    Technology,
+    Research,
+    Administration
+}
+

lesson_16/objects/objects_app/src/main/java/com/codedifferently/lesson16/oyeyemijimoh/Student.java

@@ -0,0 +1,80 @@
+import java.time.LocalDate;
+import java.util.List;
+
+public class Student {
+    private long studentNumber;
+    private String fullName;
+    private Department department;
+    private String emailAddress;
+    private List<String> phoneNumbers;
+    private LocalDate dateOfBirth;
+
+    public Student(long studentNumber, String fullName, Department department, String emailAddress, List<String> phoneNumbers, LocalDate dateOfBirth) {
+        this.studentNumber = studentNumber;
+        this.fullName = fullName;
+        this.department = department;
+        this.emailAddress = emailAddress;
+        this.phoneNumbers = phoneNumbers;
+        this.dateOfBirth = dateOfBirth;
+    }
+
+    public long getStudentNumber() {
+        return studentNumber;
+    }
+
+    public void setStudentNumber(long studentNumber) {
+        this.studentNumber = studentNumber;
+    }
+
+    public String getFullName() {
+        return fullName;
+    }
+
+    public void setFullName(String fullName) {
+        this.fullName = fullName;
+    }
+
+    public Department getDepartment() {
+        return department;
+    }
+
+    public void setDepartment(Department department) {
+        this.department = department;
+    }
+
+    public String getEmailAddress() {
+        return emailAddress;
+    }
+
+    public void setEmailAddress(String emailAddress) {
+        this.emailAddress = emailAddress;
+    }
+
+    public List<String> getPhoneNumbers() {
+        return phoneNumbers;
+    }
+
+    public void setPhoneNumbers(List<String> phoneNumbers) {
+        this.phoneNumbers = phoneNumbers;
+    }
+
+    public LocalDate getDateOfBirth() {
+        return dateOfBirth;
+    }
+
+    public void setDateOfBirth(LocalDate dateOfBirth) {
+        this.dateOfBirth = dateOfBirth;
+    }
+
+    @Override
+    public String toString() {
+        return "Student{" +
+                "studentNumber=" + studentNumber +
+                ", fullName='" + fullName + '\'' +
+                ", department=" + department +
+                ", emailAddress='" + emailAddress + '\'' +
+                ", phoneNumbers=" + phoneNumbers +
+                ", dateOfBirth=" + dateOfBirth +
+                '}';
+    }
+}

lesson_16/objects/objects_app/src/main/java/com/codedifferently/lesson16/oyeyemijimoh/StudentNotFoundException.java

@@ -0,0 +1,5 @@
+public class StudentNotFoundException extends RuntimeException{
+    public StudentNotFoundException(String message){
+        super(message);
+    }
+}

lesson_16/objects/objects_app/src/main/java/com/codedifferently/lesson16/oyeyemijimoh/StudentService.java

@@ -0,0 +1,38 @@
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class StudentService {
+
+    private final Map<Long, Student> students;
+
+    public StudentService(){
+        students = new HashMap<>();
+    }
+
+    private void checkIfStudentExist(long studentNumber){
+        if(students.containsKey(studentNumber)){
+            return;
+        }
+        throw new StudentNotFoundException("Student with number " + studentNumber + " not found");
+    }
+
+    public void deleteStudent(long studentNumber){
+        checkIfStudentExist(studentNumber);
+        students.remove(studentNumber);
+    }
+
+    public void addStudent(Student student){
+        students.put(student.getStudentNumber(), student);
+    }
+
+    public int displayAllTechDeptStudents(){
+         int count = 0;
+         for(Student student : students.values()) {
+             if(student.getDepartment().equals(Department.Technology)){
+                count++;
+             }
+         }
+         return count;
+    }
+}

lesson_16/objects/objects_app/src/test/java/com/codedifferently/lesson16/oyeyemijimoh/StudentServiceTest.java

@@ -0,0 +1,141 @@
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class StudentServiceTest {
+
+    StudentService classUnderTest;
+     Map<Long, Student> students;
+    
+    @BeforeEach
+    public void setUp(){
+       classUnderTest = new StudentService();
+
+       students = new HashMap<>();
+
+       List<String> phoneNumbers1 = new ArrayList<>();
+       phoneNumbers1.add("301-999-3222");
+       phoneNumbers1.add("301-211-3222");
+       phoneNumbers1.add("301-212-3777");
+
+       Student student1 = new Student(
+                112453698l,
+                "Jane Doe",
+                Department.Finance,
+                "[email protected]",
+                phoneNumbers1,
+                LocalDate.of(2021, 11, 20)
+        );
+
+       List<String> phoneNumbers2 = new ArrayList<>();
+       phoneNumbers2.add("301-777-3222");
+       phoneNumbers2.add("301-777-3222");
+       phoneNumbers2.add("301-777-3777");
+
+       Student student2 = new Student(
+               712453698l,
+               "Johnie Walker",
+               Department.Technology,
+               "[email protected]",
+               phoneNumbers2,
+               LocalDate.of(2021, 10, 26)
+        );
+
+       List<String> phoneNumbers3 = new ArrayList<>();
+       phoneNumbers2.add("303-999-3222");
+       phoneNumbers2.add("303-999-3222");
+       phoneNumbers2.add("303-999-3777");
+
+       Student student3 = new Student(
+               912453698l,
+               "Fannie May",
+               Department.Technology,
+               "[email protected]",
+               phoneNumbers3,
+               LocalDate.of(2017, 9, 26)
+       );
+
+       students.put(112453698l, student1);
+       students.put(712453698l, student2);
+       students.put(912453698l, student3);
+
+       classUnderTest.addStudent(student1);
+       classUnderTest.addStudent(student2);
+       classUnderTest.addStudent(student3);
+    }
+
+    @Test
+    public void testDeleteStudent_throw_Exception_IFNumber_Not_Found(){
+        //Arrange
+        Student student = new Student(
+            44444444l,
+            "Gonnie ByeBye",
+            Department.Technology,
+            "[email protected]",
+            null,
+            LocalDate.of(2019, 10, 21)
+        );
+        classUnderTest.addStudent(student);
+        //Act
+        classUnderTest.deleteStudent(student.getStudentNumber());
+
+        //Assert
+        long studentNumber = 44444444l;
+        assertThatThrownBy(() -> classUnderTest.deleteStudent(studentNumber))
+         .isInstanceOf(StudentNotFoundException.class)
+         .hasMessage("Student with number " + studentNumber + " not found"); 
+    }
+
+    @Test
+    public void testDisplayAllTechDeptStudents(){
+        Student student = new Student(
+            44444444l,
+            "Gonnie ByeBye",
+            Department.Technology,
+            "[email protected]",
+            null,
+            LocalDate.of(2019, 10, 21)
+        );
+        classUnderTest.addStudent(student);
+        //Act
+        int numOfTechStudents = classUnderTest.displayAllTechDeptStudents();
+
+        //Assert
+        int expectedCount = 3;
+        assertEquals(expectedCount, numOfTechStudents);
+    }
+    
+    @Test
+    public void testAddStudent(){
+        //Arrange
+        Student student = new Student(
+            44444444l,
+            "Gonnie ByeBye",
+            Department.Technology,
+            "[email protected]",
+            null,
+            LocalDate.of(2019, 10, 21)
+        );
+       
+        //Act
+         classUnderTest.addStudent(student);
+
+        //Assert
+        int expectedCount = 3;
+        assertEquals(expectedCount, students.size());
+    }
+    
+
+
+
+}

lesson_16/objects/objects_app/src/test/java/com/codedifferently/lesson16/oyeyemijimoh/StudentTest.java

@@ -0,0 +1,119 @@
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.checkerframework.checker.nullness.qual.AssertNonNullIfNonNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class StudentTest {
+    private Student classUnderTest;
+
+    @BeforeEach
+    public void setUp(){
+      // classUnderTest = new Student();
+      // List<Student> studentList = new ArrayList<>(); 
+       List<String> phoneNumbers = new ArrayList<>();
+       phoneNumbers.add("302-999-2222");
+       phoneNumbers.add("302-211-2222");
+       phoneNumbers.add("302-212-7777");
+       classUnderTest = new Student(
+               612453698l,
+               "John Doe",
+               Department.Finance,
+               "[email protected]",
+               phoneNumbers,
+               LocalDate.of(2022, 12, 25)
+        );
+
+    }
+    
+    @Test 
+    void testGetEmailAddress(){
+        //Arrange
+        classUnderTest.setEmailAddress("[email protected]");
+
+        //Act
+        String expectedEmailAddress = classUnderTest.getEmailAddress();
+
+        //Assert
+        String actualEmailAddress = "[email protected]";
+        assertEquals(expectedEmailAddress, actualEmailAddress);
+    }
+
+    @Test 
+    void testGetStudentNumber(){
+        //Arrange
+        classUnderTest.setStudentNumber(612453698l);
+
+        //Act
+        long expectedStudentNumber = classUnderTest.getStudentNumber();
+
+        //Assert
+        long actualStudentNumber = 612453698l;
+        assertEquals(expectedStudentNumber, actualStudentNumber);
+    }
+
+    @Test 
+    void testGetStudentFullName(){
+        //Arrange
+        classUnderTest.setFullName("John Doe");
+
+        //Act
+        String expectedStudentName = classUnderTest.getFullName();
+
+        //Assert
+        String actualStudentName = "John Doe";
+        assertEquals(expectedStudentName, actualStudentName);
+    }
+
+    @Test 
+    void testGetDepartment(){
+        //Arrange
+        classUnderTest.setDepartment(Department.Administration);
+
+        //Act
+        Department expectedDepartment = classUnderTest.getDepartment();
+
+        //Assert
+        Department actualDepartment = Department.Administration;
+        assertEquals(expectedDepartment, actualDepartment);
+    }
+
+    @Test 
+    void testGetDateOfBirth(){
+        //Arrange
+        LocalDate date = LocalDate.of(2021,9,12);
+        classUnderTest.setDateOfBirth(date);
+
+        //Act
+        LocalDate expectedDate = classUnderTest.getDateOfBirth();
+
+        //Assert
+        LocalDate actualDate = date;
+        assertEquals(expectedDate, actualDate);
+    }
+
+     @Test 
+    void testToString(){
+        //Arrange
+        
+       Student student = new Student(
+               612453698l,
+               "John Doe",
+               Department.Finance,
+               "[email protected]",
+               null,
+               LocalDate.of(2022, 12, 25)
+        );
+        //Act
+        String expectedResult = classUnderTest.toString();
+
+        //Assert
+        assertNotNull(expectedResult);
+    }
+     
+}