Question

Prepare a class and tester that simulates and tabulates the result of repeatedly throwing two dice.  Recall a dice, a six-sided cube with 1 through 6 dots on each side.

Using a now familiar looping user experience, the user enters the number of throws. Then, the system simulates the throws and displays the results using a frequency distribution chart. For instance:

Please, use this statement to get the dice action started!

String[] labels = {"Snake Eyes", "Ace Deuce", "Hard Four", "Fever Five", "Easy Six", "Natural Seven", "Easy Eight", "Nina", "Easy Ten", " Yo-leven", "Boxcars"};

Answer 1

Dice.java

import java.util.Random;

public class Dice {
        
        private String[] labels = {"", "Snake Eyes", "Ace Deuce", "Hard Four", 
                        "Fever Five", "Easy Six", "Natural Seven", "Easy Eight", 
                        "Nina", "Easy Ten", "Yo-leven", "Boxcars"};
        
        int[] diceThrows;
        private int numberOfThrows;
        
        // initializing number of throws
        public Dice(int numberOfThrows) {
                this.numberOfThrows = numberOfThrows;
                diceThrows = new int[numberOfThrows];
        }
        
        // simulation started
        public void simulate() {
                
                // creating random instance 
                Random rand = new Random();
                int min = 1, max = labels.length;
                
                // throwing dice 
                for(int i=0 ; i<numberOfThrows ; i++) {
                        int randNum = rand.nextInt(max - min) + min;
                        diceThrows[i] = randNum;                        
                }
                
                distributionChart();
        }
        
        // printing the distribution chart
        public void distributionChart() {
                
                System.out.println();
                System.out.println("-------- Frequency  Distribution ----------");
                System.out.println();
                
                // iterating through all the keys and printing each
                for(int i=1 ; i<labels.length; i++) {
                        int count = 0;
                        String s = "";
                        for(int j=0 ; j<numberOfThrows ; j++) {
                                if(i==diceThrows[j]) {
                                        s += "*";
                                        count++;
                                }
                        }
                        System.out.println(justify(labels[i])+"\t"+s);
                        //System.out.println(justify(labels[i])+"\t"+count);
                }
                System.out.println();
                System.out.println();
        }
        
        // justify the spaces for string
        public String justify(String s){
                int size = 20;
                
                for(int i=s.length() ; i<size ; i++)
                        s += " ";
                
                return s;
        }
}

Tester.java

// Tester.java

import java.util.Scanner;

public class Tester {
        
        public static void main(String[] args) {
                
                Scanner sc= new Scanner(System.in);
                
                String play="y";
                do {
                        
                        // reading number of throws
                        System.out.print("Enter number of throws : ");
                        int numberOfThows = sc.nextInt();
                        
                        // initializing dice with number of dice
                        Dice dice = new Dice(numberOfThows);
                        
                        // starting simulation 
                        dice.simulate();
                        
                        // asking user to continue the game or not
                        System.out.print("Do you want to continue (y/n) : ");
                        play = sc.next();
                        
                }while(play.charAt(0)=='y');
                
                sc.close();
                
        }
        
}

Code   

Dice.java

Tester.java

Output