CR-MesoLabs-OOP-DuplicateDeleter-BlueJ/IntegerDuplicateDeleter.java

import java.util.*;

public class IntegerDuplicateDeleter extends DuplicateDeleter<Integer>{
    public IntegerDuplicateDeleter(Integer[] array){
        super(array);
    }

    public Integer[] removeDuplicates(int maxNumberOfDuplications){
        Integer[] answer = new Integer[array.length];
        int answerIndex = 0;
        for(int i = 0; i < array.length; i++){
            Integer ocurrances = getAppearances(array[i]);
            if(ocurrances < maxNumberOfDuplications) {
                answer[answerIndex] = array[i];
                answerIndex++;
            }
        }

        Integer[] realAnswer = Arrays.copyOf(answer, answerIndex);

        return realAnswer;
    }

    public Integer[] removeDuplicatesExactly(int exactNumberOfDuplications){
        Integer[] answer = new Integer[array.length];
        int answerIndex = 0;
        for(int i = 0; i < array.length; i++){
            Integer ocurrances = getAppearances(array[i]);
            if(ocurrances < exactNumberOfDuplications || ocurrances > exactNumberOfDuplications) {
                answer[answerIndex] = array[i];
                answerIndex++;
            }
        }

        Integer[] realAnswer = Arrays.copyOf(answer, answerIndex);

        return realAnswer;


    }

    public int getAppearances(int x){
        int counter = 0;
        for(int element  : array ){
            if(element == x){
                counter++;
            }
        }
        return counter;
    }

}