package prvafinal;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Person{
    String name, email;
    int age;

    public Person(String name, String email, int age){
        this.name = name;
        this.email = email;
        this.age = age;
    }

    public String getName(){
        return name;
    }

    public String getEmail() {
        return email;
    }

    public int getAge(){
        return age;
    }

    void printIdentify(){
        System.out.println("Person name: " + getName());
        System.out.println("Person email: " + getEmail());
        System.out.println("Person age: " + getAge());
    }
    }

abstract interface Worker{
      int getSalary();
}

abstract interface AcademicInterest{
       String getInterest();
}

class Student extends Person implements AcademicInterest{
    public int avgrade;
    public String schoolClass;
    public Student(String name, String email, int age,String schoolClass, int avgrade) {
        super(name, email, age);
        this.avgrade=avgrade;
        this.schoolClass=schoolClass;
        System.out.println("Values ranging only between 5 to 10");
        }

    public int getAvgrade(){
        return avgrade;
    }

    @Override
    public String getInterest() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

}

class Teacher extends Person {
    public int rating;
    public int salary;
    public String job;
    public Teacher(String name, String email, int age, String job, int rating, int salary) {
        super(name, email, age);
        this.job=job;
        this.rating=rating;
        this.salary=salary;
    }
    public int getRating(){
        return rating;
    }
    @Override
    void printIdentify(){
        System.out.println("Person name: " + name);
        System.out.println("Person email: " + email);
        System.out.println("Person age: " + age);
        System.out.println("Person rating: " + rating);
        System.out.println("Person job: " + job);
        System.out.println("Person salary: " + salary);
    }
}

class Plummer extends Person {
    public int salary;
    public Plummer(String name, String email, int age, int salary) {
        super(name, email, age);
        this.salary=salary;
    }
    @Override
    public void printIdentify(){
        System.out.println("Person name: " + name);
        System.out.println("Person email: " + email);
        System.out.println("Person age: " + age);
        System.out.println("Person salary: " + salary);
    }

}

public class PrvaFinal {
     public static void main(String[] args) throws IOException {

	InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader input = new BufferedReader(isr);

        Person array[]=new Person[10];
        array[0]=new Person("Dan", "mit@gmail.com", 38);
        array[1]=new Plummer("John", "john@gmail.com", 48, 15000);
        array[2]=new Student("Jacob", "jacob@gmail.com", 24, "Java", 6);
        array[3]=new Student("Ian", "ian@gmail.com", 22, "Java", 8);
        array[4]=new Student("Coolio", "coolio@gmail.com", 25, "Management", 9);
        array[5]=new Student("Mark", "mark@gmail.com", 23, "Java", 8);
        array[6]=new Teacher("Fran", "fran@gmail.com", 48, "Java", 9, 80000);
        array[7]=new Teacher("Richie", "richie@gmail.com", 52, "Java", 8, 49900);
        array[8]=new Teacher("Roger", "roger@gmail.com", 39, "Management", 8, 70000);
        array[9]=new Teacher("Homer", "homer@gmail.com", 42, "Management", 6, 40000);
	System.out.println("Choose an option <enter its index>");
        System.out.println("1. Identify all workers with salary bigger then 20000 mkd");
        System.out.println("2. Identify all teachers with rating bigger then 7");
        System.out.println("3. Count people with same academic interest");
        System.out.println("4. Group students and teachers that share the same academic interest and have average grade or rating bigger then 8");

        String izbor1=input.readLine();
        int izbor2=Integer.parseInt(izbor1);

        for (;;) {

            if(izbor2==1) {
                for (int i = 0; i<10; i++){
                   if (array[i] instanceof Worker && (((Worker)array[i]).getSalary()>20000)){
                       array[i].printIdentify();
                   }
               }
               System.out.println("********************");
               break;
           }
            if(izbor2==2) {
               for (int i =0; i<10; i++){
                   if(array[i] instanceof Teacher && (((Teacher)array[i]).getRating()>7)){
                       array[i].printIdentify();

                   }
               }
               System.out.println("********************");
               break;
           }

            if(izbor2==3) {
 int javaInterest =0;
               int economicsInterest = 0;
               int managementInterest = 0;
               int financeInterest = 0;
               for (int i =0; i<10; i++){
                   if(array[i] instanceof AcademicInterest){
                       if (((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("java")){
                           javaInterest = javaInterest+1;
                       }
                       if (((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("economics")){
                           economicsInterest = economicsInterest+1;
                       }
                       if (((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("finance")){
                           financeInterest = financeInterest+1;
                       }
                       if (((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("management")){
                           managementInterest = managementInterest+1;
                       }
                   }
               }
               System.out.println("Java: " + javaInterest);
               System.out.println("Economics: " + economicsInterest);
               System.out.println("Management: " + managementInterest);
               System.out.println("Finance: " + financeInterest);
               System.out.println("********************");
               break;
            }
            if(izbor2==4) {
 String javaInterest = "";
               String economicsInterest= "";
               String financeInterest= "";
               String managementInterest= "";
               for (int i =0;i<10;i++){
               if(array[i] instanceof Student && ((Student)array[i]).getAvgrade() > 8){
                   if(((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("java")){
                       javaInterest = javaInterest + " " + array[i].getName();
                   }
                   if(((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("economics")){
                       economicsInterest = economicsInterest + " " + array[i].getName();
                   }
                   if(((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("finance")){
                       financeInterest = financeInterest + " " + array[i].getName();
                   }
                   if(((AcademicInterest)array[i]).getInterest().equalsIgnoreCase("management")){
                       managementInterest = managementInterest + " " + array[i].getName();
                   }

                 }
               }
               System.out.println("Java: " + javaInterest);
               System.out.println("Economics: " + economicsInterest);
               System.out.println("Management: " + managementInterest);
               System.out.println("Finance: " + financeInterest);

               System.out.println("********************");
               break;
           }

            System.out.println("Do you like to list more? <1-yes,0-no>\n");
            String izbor3 = input.readLine();
            int izbor4 = Integer.parseInt(izbor3);
            if(izbor4==0) {
                break;
            }
        }
     }
}