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interfaces-1.iml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: junit:junit:4.13.1" level="project" />
+    <orderEntry type="library" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
+  </component>
+</module>

pom.xml

@@ -21,5 +21,11 @@
       <version>3.8.1</version>
       <scope>test</scope>
     </dependency>
+
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.13.1</version>
+    </dependency>
   </dependencies>
 </project>

src/main/java/io/zipcoder/interfaces/ClassRoom.java

@@ -0,0 +1,26 @@
+package io.zipcoder.interfaces;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class ClassRoom {
+    private HashMap<String, Person> roster;
+
+    public ClassRoom(){
+        roster = new HashMap<String, Person>();
+    }
+    public HashMap<String,Person> getRoster(){
+        ArrayList<Instructor> instructors = ZipCodeWilmingtonClass.getInstructors();
+        for (int i = 0; i < instructors.size(); i++) {
+            Instructor x = instructors.get(i);
+            roster.put(x.getName(), x);
+        }
+        ArrayList<Student> students = TechConnect.getStudents();
+        for (int i = 0; i < students.size(); i++) {
+            Student y = students.get(i);
+            roster.put(y.getName(), y);
+        }
+        return roster;
+    }
+
+}

src/main/java/io/zipcoder/interfaces/Instructor.java

@@ -0,0 +1,25 @@
+package io.zipcoder.interfaces;
+
+public class Instructor extends Person implements Teacher {
+
+    public Instructor(String name) {
+        super(name);
+    }
+
+    public void teach(Student student, double numberOfHours) {
+        student.learn(numberOfHours);
+
+    }
+
+    public void lecture(Student[] students, double numberOfHours) {
+        double numberOfHoursPerStudent = numberOfHours / students.length;
+        for (int i = 0; i < students.length; i++) {
+            students[i].learn(numberOfHoursPerStudent);
+
+        }
+
+    }
+
+
+
+}

src/main/java/io/zipcoder/interfaces/Learner.java

@@ -0,0 +1,5 @@
+package io.zipcoder.interfaces;
+
+public interface Learner {
+    public void learn(double numberOfHours);
+}

src/main/java/io/zipcoder/interfaces/Person.java

@@ -2,4 +2,21 @@
 
 public class Person {
 
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    String name;
+
+    public Person(String name)
+    {
+        this.name=name;
+    }
+
+
+
 }

src/main/java/io/zipcoder/interfaces/Student.java

@@ -0,0 +1,21 @@
+package io.zipcoder.interfaces;
+
+public class Student extends Person implements Learner{
+
+
+    double totalStudyTime;
+    public Student(String name) {
+        super(name);
+    }
+
+    public void learn(double numberOfHours) {
+        totalStudyTime+=numberOfHours;
+
+    }
+
+    public double getTotalStudyTime() {
+        return totalStudyTime;
+    }
+
+
+}

src/main/java/io/zipcoder/interfaces/Teacher.java

@@ -0,0 +1,6 @@
+package io.zipcoder.interfaces;
+
+public interface Teacher {
+    public void teach(Student student , double numberOfHours);
+    public void lecture(Student[] students , double numberOfHours);
+}