Initial framework for lesson 7 exercises.

Author: jimflores5

src/org/launchcode/java/demos/lsn7interfaces/Course.java

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+package org.launchcode.java.demos.lsn7interfaces;
+
+import java.util.ArrayList;
+
+public class Course {
+    private static int nextCourseId = 100000;
+    private int id;
+    private String name;
+    private int credits;
+    private ArrayList<Teacher> instructors;
+
+    public Course(){
+        id = nextCourseId;
+        nextCourseId++;
+    }
+}

src/org/launchcode/java/demos/lsn7interfaces/School.java

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+package org.launchcode.java.demos.lsn7interfaces;
+
+import java.util.ArrayList;
+
+public class School {
+    private ArrayList<Course> courses;
+    private ArrayList<Teacher> teachers;
+    private ArrayList<Student> students;
+
+
+}

src/org/launchcode/java/demos/lsn7interfaces/Student.java

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+package org.launchcode.java.demos.lsn7interfaces;
+
+import java.util.ArrayList;
+
+public class Student {
+    private static int nextStudentId = 1;
+    private int id;
+    private String name;
+    private ArrayList<Course> schedule;
+    private double gpa;
+
+    public Student(){
+        id = nextStudentId;
+        nextStudentId++;
+    }
+
+    public Student(String aName, ArrayList<Course> aSchedule, double aGpa){
+        this();
+        name = aName;
+        schedule = aSchedule;
+        gpa = aGpa;
+    }
+
+    private String printSchedule(ArrayList<Course> classList){
+        String output = "";
+        for (Course item : classList){
+            output += item+"\n";
+        }
+        return output;
+    }
+}

src/org/launchcode/java/demos/lsn7interfaces/Teacher.java

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+package org.launchcode.java.demos.lsn7interfaces;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class Teacher {
+    private String name;
+    private HashMap<Course, ArrayList<Student>> classesTaught;
+}