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@jaymo107
Created February 15, 2014 22:09
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Lottery Simulation
import java.util.Random;
import java.util.Scanner;
public class Main {
private static float totalWinnings = 0;
private static int[] numbers = new int[6];
private static int[] draw = new int[6];
private static int totalMatches;
private static int numberOfGames = 100;
public static void main(String[] args){
//draw the numbers
simulateGames();
//print to the console
if(totalWinnings > 0)
System.out.println("You won £"+totalWinnings+"0");
else
System.out.println("You didn't win anything.");
}
private static void selectNumbers(){
//indicate the user to enter their numbers
System.out.println("Please enter your 6 numbers between 1 and 49:");
//loop until 6 numbers have been chosen
for(int i = 0; i < numbers.length; i++){
Scanner s = new Scanner(System.in);
int number = s.nextInt();
numbers[i] = number;
}
}
private static void draw(){
for(int i = 0; i < draw.length; i++){
int number = new Random().nextInt(49);
if(number == 0){
while(number == 0)
number = new Random().nextInt(49);
} draw[i] = number;
}
}
private static int findMatches(int[] chosen, int[] draw){
//loop through chosen numbers and see if they exist in the draw
int matches = 0;
for(int i = 0; i < chosen.length; i++){
for(int x = 0; x < draw.length; x++){
if(draw[x] == chosen[i]){
matches++;
}
}
} return matches;
}
private static void simulateGames(){
//select the numbers
selectNumbers();
//loop through the games
for(int i = 0; i < numberOfGames; i++){
draw();
totalMatches = findMatches(numbers, draw);
int money = 0;
switch(totalMatches){
case 0:
money = 0; break;
case 1:
money = 0; break;
case 2:
money = 0; break;
case 3:
money = 10; break;
case 4:
money = 50; break;
case 5:
money = 250; break;
case 6:
money = 1500000; break;
default:
money = 0;
} totalWinnings += (float)money;
}
}
}
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