Question

Write a Java Program to play your version of the Texas Pick 3 Lottery. You will need to include the provided code given below in your program.

Task:The program will prompt for a number between 0 and 999. Your program will display the number of attempts it took for the entered number to match a randomly generated number.

1. In the main() method, declare an int named myPick3choice.
2. Create a prompt for myPick3choice as "Enter your Pick 3 choice:0-999".
3. Create a void method named playPick3 that has an int parameter named myPick3.
4. In the playPick3 method, do the following:
   1. Create an int variable called playCounter and initialize it to 0.
   2. Create an int variable called myPick3Result.
   3. Create a loop that calls the method officialPlayPick3 (Provided below) and store the result in myPick3Result.
      1. If myPick3Result matches the variable myPick3, then display the result of playcounter as "PlayCounter = ...." and exit the loop.
      2. If myPick3Result does not match, increment the variable playCounter and continue the loop.

Enter your Pick 3 choice 0-999: 554

PlayCounter = 1343   ( This result will vary )

Include the code below in your program. The code also requires the following import line:

import java.util.concurrent.ThreadLocalRandom;

/**
* officialPlayPick3()
* Returns a random number from 0 to 999
* @return int
*/

public static int officialPlayPick3() {

      final int MIN_RANGE_VALUE = 0;

final int MAX_RANGE_VALUE = 999;

       return ThreadLocalRandom.current().nextInt(MIN_RANGE_VALUE,MAX_RANGE_VALUE + 1);
}

Also Create a loop in the main method to allow you to play as often as you wish.

Answer 1

PROGRAM :

import java.util.Scanner;
import java.util.concurrent.ThreadLocalRandom;

public class LotteryGame {

static void playPick3(int myPick3)
{
int playCounter=0;
int myPick3Result;

while(true)
{
myPick3Result=officialPlayPick3();
if(myPick3Result==myPick3)
{
System.out.println("PlayCounter = "+playCounter);
return;
}
else
{
playCounter++;
}
}

}
static int officialPlayPick3()
{
final int MIN_RANGE_VALUE = 0;

final int MAX_RANGE_VALUE = 999;

return ThreadLocalRandom.current().nextInt(MIN_RANGE_VALUE,MAX_RANGE_VALUE + 1);
}
public static void main(String[] args) {
// TODO Auto-generated method stub
int myPick3choice;
Scanner sc=new Scanner(System.in);

System.out.print("Enter your Pick 3 choice:0-999: ");
myPick3choice=sc.nextInt();

playPick3(myPick3choice);

}

}

OUTPUT :

Enter your pick 3 choice: 342
Playcounter = 22