Task 2.4

package org.KNUJavaLabs.HW.hw6;
import org.KNUJavaLabs.ClassWork.lab6.Student;
import org.KNUJavaLabs.HW.hw6.Abiturient;
/*
LabsJava4 Task 2.4
 */
import java.util.*;

public class Task2_4 {
    public static void main(String[] args) {
        Abiturient[] list = new Abiturient[]{
                new Abiturient(new String[] {"1","A", "AA","AAA", "Kyiv", "11111111"},new int[] {1,5,5,4,3,2,4,5,2,3,1}),
                new Abiturient(new String[] {"2","B", "BB","BBB", "Sumy", "22222222"},new int[] {5,5,5,5,5,5,5,5,5,5,5,5,5,5}),
                new Abiturient(new String[] {"3","C", "CC","CCC", "Vinnitsya", "33333333"},new int[] {3,5,5,5,5,1,5,4,4,2,1,2,4}),
                new Abiturient(new String[] {"4","D", "DD","DDD", "Poltava", "44444444"},new int[] {4,4,4,4,4,4,4,4,4,4,4}),
                new Abiturient(new String[] {"5","F", "FF","FFF", "Lviv", "55555555"},new int[] {1,1,1,2,2,2,1,4,3,2,1})};
        Scanner scanner = new Scanner(System.in);
        System.out.println("A)\n" +"Students with bad marks :");

        taskA(list);
        System.out.println("B)");
        System.out.println("Enter main summ of marks");
        int enteredSummOfMarks = scanner.nextInt();
        System.out.println("Students with summ of marks greater than "+enteredSummOfMarks+" :");
        taskB(list,enteredSummOfMarks);
        System.out.println("C)\n");
        int enteredNumbOfAbits = 0;
        do {
            System.out.println("Enter number of Abiturients with the greatest marks u wanna see <5");
            enteredNumbOfAbits = scanner.nextInt();
        } while (enteredNumbOfAbits >= 6 || enteredNumbOfAbits == 0);
        System.out.println("Enter Reward Summ:");
        int RewardSumm = scanner.nextInt();
        taskC(list,enteredNumbOfAbits,RewardSumm);




    }
    public static void taskA (Abiturient[]abiturients){
        for (Abiturient abiturient : abiturients) {
            for (int j = 0; j < abiturient.getMarks().length; j++) {
                if (abiturient.getMarks()[j] < 3) {
                    System.out.println(abiturient.getName() + " " + abiturient.getLastname() + " " + abiturient.getFathername());
                    break;
                }
            }
        }
    }
    public static void taskB (Abiturient[]abiturients,int enteredSummOfMarks){
        for (Abiturient abiturient : abiturients) {
            if (getSummOfMarks(abiturient.getMarks())>enteredSummOfMarks){
                System.out.println(abiturient.getName() + " " + abiturient.getLastname() + " " + abiturient.getFathername());
            }
        }
    }
    public static void taskC (Abiturient[]abiturients,int enteredNumbOfAbits, int RewardSumm){
        int counter = 0;
        Map<String ,Integer> marks = new LinkedHashMap<>();
        for (Abiturient abiturient : abiturients) {
            marks.put(abiturient.getName() + " " + abiturient.getLastname() + " " + abiturient.getFathername(),getSummOfMarks(abiturient.getMarks()));
        }
        int[] greatestMarks = new int[abiturients.length];
        for(Integer sumOfMarks : marks.values()){
            greatestMarks[counter] = sumOfMarks;
            counter +=1;
        }
        counter = 0 ;
        Arrays.sort(greatestMarks);
        for(int i = greatestMarks.length-1;i >=0; i --){
            if(counter ==enteredNumbOfAbits){break;}
            for(int j = 0 ; j < abiturients.length; j ++){
                if (getSummOfMarks(abiturients[j].getMarks()) == greatestMarks[i]){
                    System.out.println(abiturients[j].getName() + " " + abiturients[j].getLastname() + " " + abiturients[j].getFathername()+" "+getSummOfMarks(abiturients[j].getMarks()));
                }
            }
            counter +=1;
        }

        System.out.println("Students who have half Reward Summ of marks :");
        for(Abiturient abiturient:abiturients){
            if (getSummOfMarks(abiturient.getMarks())>RewardSumm/2 && getSummOfMarks(abiturient.getMarks())<RewardSumm){
                System.out.println(abiturient.getName() + " " + abiturient.getLastname() + " " + abiturient.getFathername()+" "+getSummOfMarks(abiturient.getMarks()));
            }
        }



    }
    public static int getSummOfMarks(int[]marks){
        int summ = 0;
        for(int mark:marks){
            summ +=mark;
        }
        return summ;
    }


}