DiceRoller

Roller.java

package dice;

import java.util.Random;

public abstract class Roller {
    private static Random r = new Random();

    public static int d4() {
        return d(4);
    }

    public static int d6() {
        return d(6);
    }

    public static int d8() {
        return d(8);
    }

    public static int d20() {
        return d(20);
    }

    public static int dPerc() {
        return d(100);
    }

    public static int d(int sides) {
        return r.nextInt(sides) + 1;
    }
}