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 occurrences = getAppearances(array[i]);
    if(occurrences < 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 occurrences = getAppearances(array[i]);
    if(occurrences < exactNumberOfDuplications || occurrences > 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;
}

}