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

import java.util.Arrays;

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 == value){
                appearances++;}
        }
        return appearances;
    }

}