class

1.  package class_work;
2.
3.
4.  public class Person {
5.
6.
7.     protected String name;
8.     protected int age;
9.
10.    public Person(String name,int age)
11.    {
12.        this.name=name;
13.        this.age=age;
14.
15.    }
16.    public void display()
17.     {
18.         System.out.println(name+"\n"+age+"\n");
19.
20.     }
21.
22.
23. }
24.
25. package class_work;
26.
27.
28. public class Student extends Person {
29.      String id;
30.      double cgpa;
31.
32.     public Student(String name,int age,String id, double cgpa) {
33.         super(name,age);
34.         this.id = id;
35.         this.cgpa = cgpa;
36.
37.     }
38.
39.     public void display()
40.     {
41.          super.display();
42.          System.out.println(id+"\n"+cgpa+"\n");
43.     }
44.
45. }
46.
47. package class_work;
48.
49.
50. public class Teacher extends Person{
51.      String designation,dept;
52.
53.
54.     public Teacher(String name1,int age1,String designation, String dept) {
55.         super(name1,age1);
56.         this.designation = designation;
57.         this.dept = dept;
58.     }
59.     public void display()
60.     {
61.         super.display();
62.         System.out.println(designation+"\n"+dept+"\n");
63.     }
64.
65. }
66.
67. package class_work;
68.
69. import java.util.Scanner;
70. public class Department {
71.     private String depName;
72.     private int depCode;
73.     Student student;
74.     Teacher teacher;
75.
76.     public Department(String depName, int depCode,Student student,Teacher teacher) {
77.         this.depName = depName;
78.         this.depCode = depCode;
79.         this.student=student;
80.         this.teacher=teacher;
81.     }
82.     public void displayAll()
83.     {
84.         System.out.println("Student portal :\n"+student.name+"\n"+student.age+""+student.id+"\n"+student.cgpa+"\n"+depName+"\n"+depCode+"\n");
85.         System.out.println("Teacher portal :\n"+teacher.name+"\n"+teacher.age+""+teacher.designation+"\n"+teacher.dept+"\n"+depName+"\n"+depCode+""+teacher.name+"\n");
86.
87.     }
88.     public static void main(String[] args)
89.
90.     {
91.
92.         Scanner Input=new Scanner(System.in);
93.         System.out.println("Enter number of student and teacher");
94.         int n=Input.nextInt();
95.         Department []obj=new Department[n];
96.           Student []obj1=new Student[n];
97.           Teacher []obj2=new Teacher[n];
98.             for(int i=0;i<n;i++){
99.                 Input.nextLine();
100.                 System.out.print("Student name=");
101.                 String name=Input.nextLine();
102.                  System.out.print("Student Age=");
103.                  int age=Input.nextInt();
104.                  Input.nextLine();
105.                  System.out.print("Student Id=");
106.                  String id=Input.nextLine();
107.                  System.out.print("Student CGPA=");
108.                  double cgpa= Input.nextDouble();
109.                  Input.nextLine();
110.                  System.out.print("Teacher name=");
111.                  String name1=Input.nextLine();
112.                  System.out.print("Teacher Age=");
113.                  int age1=Input.nextInt();
114.                  Input.nextLine();
115.                  System.out.print("Teacher designation=");
116.                  String designation=Input.nextLine();
117.                  System.out.print("Teacher dept=");
118.                  String dept=Input.nextLine();
119.                  System.out.print("deptName=");
120.                  String deptName = Input.next();
121.                  System.out.print("deptCode=");
122.                  int deptCode = Input.nextInt();
123.                  obj1[i]=new Student(name,age,id,cgpa);
124.                  System.out.println("Student Information\n");
125.                obj1[i].display();
126.                 obj2[i]=new Teacher(name1,age1,designation,dept);
127.                 System.out.println("Teacher Information\n");
128.                obj2[i].display();
129.                obj[i] = new  Department(deptName,deptCode,obj1[i],obj2[i]);
130.                System.out.println("All Informatin\n");
131.                obj[i].displayAll();
132.
133.
134.        }
135.
136.
137.
138.
139.
140.        }
141.    }