Creat a class Department with the following private member variables

• int did
• String dname

Include appropriate getters and setters method in Department class.

Create a class Student with the following private member variables

• int sid
• String sname
• Department department

Include appropriate getters and setters method in Student class.

Creat a TestMain class which has main method.

In addition to main method, creat a method 

      public static Student createStudent() - All input as shown in the sameple input should be got in this method. Set the values to the Student object and return that object

Note : In main method, invoke the createStudent method and print the details of the object returned by that method.

Sample Input 1:

Enter the Department id:

100

Enter the Department name:

Computerscience

Enter the Student id:

123

Enter the Student name:

sudhaSample Output 1:

Department id:100

Department name:Computerscience

Student id:123

Student name:sudha

 

Answer:

//Department.java

class Department{
  private int did;
  private String dname;

  public void setDid(int did){
    this.did = did;
  }
  public void setDname(String dname){
    this.dname = dname;
  }


  public int getDid(){
    return this.did;
  }
  public String getDname(){
    return this.dname;
  }
}

//Student.java

class Student{
  private int sid;
  private String sname;
  private Department department = new Department();


  public void setSid(int sid){
    this.sid = sid;
  }
  public void setSname(String sname){
    this.sname = sname;
  }
  public void setDepartment(int did,String dname){
    department.setDid(did);
    department.setDname(dname);
  }


  public int getSid(){
    return this.sid;
  }
  public String getSname(){
    return this.sname;
  }


  public void getDepartment(){
    System.out.println("Department ID: "+department.getDid());
    System.out.println("Department name: "+department.getDname());
  }
}

//TestMain.java

import java.util.Scanner;

class TestMain {
  public static void main(String[] args) {
    Scanner scnr = new Scanner(System.in);
    
    Student s = new Student();

    int id;
    String name;


    System.out.print("Enter department id: ");
    id = scnr.nextInt();

    System.out.print("Enter department name: ");
    name = scnr.next();
    
    s.setDepartment(id, name);
    
    System.out.print("Enter student id: ");
    id = scnr.nextInt();
    s.setSid(id);

    System.out.print("Enter student name: ");
    name = scnr.next();
    s.setSname(name);


    System.out.println("\n");
    s.getDepartment();
    System.out.println("Student ID: "+s.getSid());
    System.out.println("Student name: "+s.getSname());


  }
}

Step-by-step explanation

PFA