code and setup

2026-05-02 17:53:39 +03:30
parent 9cee42eb50
commit 500afde0c8
10 changed files with 673 additions and 56 deletions
@@ -0,0 +1,67 @@
+package models;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Course {
+    private static int nextId = 1;
+
+    private int id;
+    private String name;
+    private Teacher teacher;
+    private List<Student> students;
+
+    public Course(String name) {
+        this.id = nextId++;
+        this.name = name;
+        this.students = new ArrayList<>();
+    }
+
+    public int getId() { return id; }
+    public String getName() { return name; }
+    public Teacher getTeacher() { return teacher; }
+
+    public void setTeacher(Teacher teacher) {
+        this.teacher = teacher;
+    }
+
+    public boolean addStudent(Student student) {
+        if (students.contains(student)) {
+            return false;
+        }
+        students.add(student);
+        return true;
+    }
+
+    public List<Student> getStudents() {
+        return students;  // ساده، بدون unmodifiable
+    }
+
+    public void showStudents() {
+        if (students.isEmpty()) {
+            System.out.println("  No students enrolled yet.");
+        } else {
+            System.out.println("  Students in " + name + ":");
+            for (Student s : students) {
+                System.out.println("    - " + s.getUsername());
+            }
+        }
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) return true;
+        if (obj == null || getClass() != obj.getClass()) return false;
+        Course course = (Course) obj;
+        return id == course.id;
+    }
+
+    @Override
+    public String toString() {
+        if (teacher != null) {
+            return "[ID:" + id + "] " + name + " (Teacher: " + teacher.getUsername() + ")";
+        } else {
+            return "[ID:" + id + "] " + name + " (No teacher assigned)";
+        }
+    }
+}