SchoolManagementSystem.java

public class SchoolManagementSystem {
    public static void main(String[] args) {
       
        Principal principal = new Principal("Dr. Sajjad Hussain ", 60, 35);
       
        School school = new School("United education school", "defence road lahore", principal);

        Teacher teacher1 = new Teacher("Mr. Sumar", 40, "Mathematics", 101);
        Teacher teacher2 = new Teacher("Ms. ayeesha", 35, "Science", 102);

        Classroom class1 = new Classroom("Grade 10", "G10", teacher1);
        Classroom class2 = new Classroom("Grade 11", "G11", teacher2);

        school.addClassroom(class1);
        school.addClassroom(class2);
        Student student1 = new Student("Ghulam", 15, 109);
        Student student2 = new Student("Hussain", 16, 34);
        Student student3 = new Student("Akram", 15, 12);
        Student student4 = new Student("Hamza", 16, 04);
        Student student5 = new Student("Nadeem", 15, 07);

        class1.addStudent(student1);
        class1.addStudent(student2);
        class1.addStudent(student3);
        class1.addStudent(student4);
        class1.addStudent(student5);
		
        System.out.println(school);
    }
}