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 occurences = getAppearances(array[i]);
            if (occurences < 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 occurences = getAppearances(array[i]);
            if (occurences < exactNumberOfDuplications || occurences > exactNumberOfDuplications) {
                answer[answerIndex] = array[i];
                answerIndex++;
            }
        }
        Integer[] realAnswer = Arrays.copyOf(answer, answerIndex);
        return realAnswer;

    }

    public int getAppearances(Integer value) {
        int appearances = 0;

        for (Integer element : array){
            if(element == value){
                appearances++;
            }
        }
        return appearances;
    }

}