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

import java.util.Arrays;

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

    public int getApperances(Integer value){
        int appearances = 0;
        for(Integer element : array){
            if(element == value){
                appearances++;
            }
        }
        return appearances;
    }
}