Jaba 9

import java.util.*;

interface MainInterface {
    public void input();
    public void output();
    public void method();
}

class Dyscyplina implements MainInterface {
    private String name;
    private int lectHours;
    private int labHours;
    private int selfHours;

    public void input() {
        Scanner in = new Scanner(System.in);
        System.out.println("Input name: ");
        name = in.nextLine();
        System.out.println("Input lect hours: ");
        lectHours = in.nextInt();
        System.out.println("Input lab hours: ");
        labHours = in.nextInt();
        System.out.println("Input self hours: ");
        selfHours = in.nextInt();
    }

    public void output() {
        System.out.printf("Name: %s\nLect hours: %s\nLab hours: %s\n Self hours: %s\n", name, lectHours, labHours,selfHours);
    }

    public void method() {
        System.out.printf("Total hours: %s\n", Integer.toString(lectHours + labHours + selfHours));
    }

}

class Salary implements MainInterface {
    private String fio;
    private int hours;
    private int payment;

    public void input() {
        Scanner in = new Scanner(System.in);
        System.out.println("Input fio: ");
        fio = in.nextLine();
        System.out.println("Input hours of work: ");
        hours = in.nextInt();
        System.out.println("Input payment for hour: ");
        payment = in.nextInt();
    }

    public void output() {
        System.out.printf("Name: %s\nHours of work: %s\nPayment: %s\n", fio, hours, payment);
    }

    public void method() {
        System.out.printf("Total payout: %s\n", Integer.toString(hours * payment));
    }

}

class Providers implements MainInterface {
    private String name;
    private int speed;
    private int price;

    public void input() {
        Scanner in = new Scanner(System.in);
        System.out.println("Input name: ");
        name = in.nextLine();
        System.out.println("Input speed: ");
        speed = in.nextInt();
        System.out.println("Input price: ");
        price = in.nextInt();
    }

    public void output() {
        System.out.printf("Name: %s\nSpeed: %s\nPrice: %s\n", name, speed, price);
    }

    public void method() {
        System.out.printf("Price/Speed: %s\n", price / speed);
    }

}


public class MyClass {
    public static void main(String args[]) {
      MainInterface mi[] = new MainInterface[3];
      mi[0] = new Dyscyplina();
      mi[1] = new Salary();
      mi[2] = new Providers();
      for(MainInterface x: mi) {
          x.input();
          x.output();
          x.method();
      }
    }
}