ZCW-DiceyLab/Simulation.java

public class Simulation
{   
    Integer numberOfDice;
    Integer numberOfTosses;
    public Simulation(Integer numberOfDice,Integer numberOfTosses){
        this.numberOfDice = numberOfDice;
        this.numberOfTosses = numberOfTosses;
    }
    Bins results = new Bins();
    public void runSimulation(){
        int currentRoll = 0;
        Dice dice = new Dice(numberOfDice);
        Bins results = new Bins();
        while(currentRoll < numberOfTosses){
            int result = dice.tossSum();
            currentRoll++; 
            results.increment(result);
        }
        printHeader();
        printResults(results);
    }

    public float ratioOfTosses(int numberOfSpecificResult){
        return numberOfSpecificResult/(float)numberOfTosses;
    }
    
    public void printHeader(){
        System.out.println("***\n" + "Simulation of " + numberOfDice
        + " dice tossed for " + numberOfTosses + " times.\n***");
    }
    
    public void printResults(Bins results){
        for(int i = 2; i <=12;i++){
            float ratio = ratioOfTosses(results.getN(i));
            StringBuilder stars = new StringBuilder();
            for(int j = 1; j < (ratio*100); j++){
                    stars.append("*");
            }
            System.out.println(String.format("%2s :%9s:%5.2f ",i,results.getN(i),ratio)+stars.toString());
        }
    }

}