class BetaDistributionNearbyRandom implements NearbyRandom {

    private final BetaDistribution betaDistribution;

    public BetaDistributionNearbyRandom(double betaDistributionAlpha, double betaDistributionBeta) {
        if (betaDistributionAlpha <= 0) {
            throw new IllegalArgumentException("The betaDistributionAlpha (" + betaDistributionAlpha
                    + ") must be greater than 0.");
        }
        if (betaDistributionBeta <= 0) {
            throw new IllegalArgumentException("The betaDistributionBeta (" + betaDistributionBeta
                    + ") must be greater than 0.");
        }
        betaDistribution = new BetaDistribution(betaDistributionAlpha, betaDistributionBeta);
    }

    @Override
    public int nextInt(Random random, int nearbySize) {
        double d = betaDistribution.inverseCumulativeProbability(random.nextDouble());
        int next = (int) (d * nearbySize);
        // The method inverseCumulativeProbability() might return 1.0
        if (next >= nearbySize) {
            next = nearbySize - 1;
        }
        return next;
    }

    @Override
    public int getOverallSizeMaximum() {
        return Integer.MAX_VALUE;
    }

    @Override
    public boolean equals(Object other) {<FILL_FUNCTION_BODY>}

    @Override
    public int hashCode() {
        return Objects.hash(betaDistribution.getAlpha(), betaDistribution.getBeta());
    }
}

        if (this == other)
            return true;
        if (other == null || getClass() != other.getClass())
            return false;
        BetaDistributionNearbyRandom that = (BetaDistributionNearbyRandom) other;
        return Objects.equals(betaDistribution.getAlpha(), that.betaDistribution.getAlpha())
                && Objects.equals(betaDistribution.getBeta(), that.betaDistribution.getBeta());
    
<no_super_class>