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

import java.util.*;
public final class StringDuplicateDeleter extends DuplicateDeleter<String> {

    public StringDuplicateDeleter(String[] array){
        super(array);
    } 

    public String[] removeDuplicates(int maxNumberOfDuplications){
        String[] answer = new String[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++;
            }
        }
        String[] realAnswer = Arrays.copyOf(answer, answerIndex);
        return realAnswer;
    }

    public String[] removeDuplicatesExactly(int exactNumberOfDuplications){
        String[] answer = new String[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++;
            }
        }
        String[] realAnswer = Arrays.copyOf(answer, answerIndex);
        return realAnswer;

    }

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

        for (String element : array){
            if(element.equals(value)){
                appearances++;
            }
        }
        return appearances;
    }
}