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12 changes: 12 additions & 0 deletions pom.xml
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,18 @@
<groupId>com.zipcodewilmington</groupId>
<artifactId>Dicey-Lab</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>14</source>
<target>14</target>
</configuration>
</plugin>
</plugins>
</build>


</project>
22 changes: 22 additions & 0 deletions src/main/java/Bins.java
Original file line number Diff line number Diff line change
@@ -1,4 +1,26 @@
import java.util.Arrays;

public class Bins {
Integer[] bins;
Integer min;
Integer max;

public Bins(Integer min, Integer max) {
bins = new Integer[max - min + 1];
this.min = min;
this.max = max;
Arrays.fill(bins, 0);
}

public Integer getBinValue(Integer diceRoll){
return bins[diceRoll - min];
}

public Integer[] getBins(){
return bins;
}

public Integer incrementBins(Integer diceRoll){
return bins[diceRoll - min] ++;
}
}
27 changes: 27 additions & 0 deletions src/main/java/Dice.java
Original file line number Diff line number Diff line change
@@ -1,4 +1,31 @@
import java.util.Random;

public class Dice {

int numberOfDice;


public Dice(int numberOfDice) {
this.numberOfDice = numberOfDice;
}

public int tossAndSum() {
int sumOfDice = 0;
for (int i = 0; i < numberOfDice; i++) {
sumOfDice += rollDie();
}
return sumOfDice;
}

private int rollDie() {
return (int) (Math.random() * 6 + 1);
}

public int getNumberOfDice(){
return numberOfDice;
}
public void setNumberOfDice(int numberOfDice) {
this.numberOfDice = numberOfDice;
}

}
47 changes: 47 additions & 0 deletions src/main/java/Simulation.java
Original file line number Diff line number Diff line change
@@ -1,5 +1,52 @@
public class Simulation {

Integer numberOfDice;
Integer numberOfTosses;
Dice dice;
Bins bins;

public Simulation(Integer numberOfDice, Integer numberOfTosses) {
this.numberOfDice = numberOfDice;
this.numberOfTosses = numberOfTosses;
}

public void runSimulation() {
this.dice = new Dice(2);
this.bins = new Bins(2, 12);

for (int i = 0; i < numberOfTosses; i++) {
Integer sumUp = dice.tossAndSum();
bins.incrementBins(sumUp);
}
System.out.println("");
}

public void printResults() {
for(Integer i = 2; i <= 12; i++) {
Double percentage = (double) bins.getBinValue(i) / numberOfTosses;
System.out.printf("%2d : %7d: %.2f ", i, bins.getBinValue(i), percentage);
for(int j = 1; j < percentage * 100; j++)
{
System.out.print("*");
}
System.out.println();
}
}


public double getPercentage(Integer numberOfTosses, Bins bins) {
double percentage = 0;
for( int element : bins.getBins()) {
percentage = element/ numberOfTosses;
}
return percentage;
}

public static void main(String[] args) {
Simulation simulation = new Simulation(2, 1000000);
simulation.runSimulation();
simulation.printResults();
}


}
2 changes: 2 additions & 0 deletions src/test/java/DiceTest.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
public class DiceTest {
}