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

 


public class IntegerDuplicateDeleter extends DuplicateDeleter<Integer>{

    public IntegerDuplicateDeleter(Integer[] array) {
        super(array);
    }
    
    public Integer[] removeDuplicates(int maxNumberOfDuplications) {
        Integer[] newArray = new Integer[array.length];
        
        int newArrayIndex = 0;
        
        for (Integer num : array) {
            int occurence = countOccurance(num);
            if (occurence < maxNumberOfDuplications) {
                newArray[newArrayIndex] = num;
                newArrayIndex++;
            }
        } 
        
        Integer[] finalArray = new Integer[newArrayIndex];
        System.arraycopy(newArray, 0, finalArray, 0, newArrayIndex);
        return finalArray;
    }

    public Integer[] removeDuplicatesExactly(int exactNumberOfDuplications) {
     Integer[] newArray = new Integer[array.length];
        
        int newArrayIndex = 0;
        
        for (Integer num : array) {
            int occurence = countOccurance(num);
            if (occurence != exactNumberOfDuplications) {
                newArray[newArrayIndex] = num;
                newArrayIndex++;
            }
        } 
        
        Integer[] finalArray = new Integer[newArrayIndex];
        System.arraycopy(newArray, 0, finalArray, 0, newArrayIndex);
        return finalArray;
    }
    
    private int countOccurance(Integer number) {
        int count = 0;
        for (Integer i : array) {
            if (number == i) {
                count = count + 1;
            }
        }
        return count;
    }
}