Exercise_03_15.java

/*
(Game: lottery) Revise Listing 3.8, Lottery.java, to generate a lottery of a threedigit
number. The program prompts the user to enter a three-digit number and
determines whether the user wins according to the following rules:
1. If the user input matches the lottery number in the exact order, the award is
$10,000.
2. If all digits in the user input match all digits in the lottery number, the award is
$3,000.
3. If one digit in the user input matches a digit in the lottery number, the award is
$1,000.
*/
import java.util.Scanner;

public class Exercise_03_15 {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);

		// Generate a random three-digit number
		int lottery = (int)(Math.random() * 1000);

		// Prompt the user to enter a three-digit number
		System.out.print("Enter a three-digit number: ");
		int guess = input.nextInt();

		// Extract digits from lottery
		int lotteryDigit1 = lottery / 100;
		int remainingDigits = lottery % 100;
		int lotteryDigit2 = remainingDigits / 10;
		int lotteryDigit3 = remainingDigits % 10;

		// Extract digits from guess
		int guessDigit1 = guess / 100;
		int remainingDigits = guess % 100;
		int guessDigit2 = remainingDigits / 10;
		int guessDigit3 = remainingDigits % 10;

		System.out.println("The lottery number is " + lottery);

		// Check the guess
		if (guess == lottery)
			System.out.println("Exact match: you win $10,000");
		else if( guessDigit1 == lotteryDigit2 && guessDigit2 == lotteryDigit3 && guessDigit3 == lotteryDigit1 )
		{
			System.out.println("digits match, but different order: you win $1,000");
			}
	
	else if( guessDigit1 == lotteryDigit3 && guessDigit2 == lotteryDigit1 && guessDigit3 == lotteryDigit2 )
		{
			System.out.println("digits match, but different order: you win $3,000");
			}
	else if( guessDigit1 == lotteryDigit3 && guessDigit2 == lotteryDigit2 && guessDigit3 == lotteryDigit1 )
		{
			System.out.println("digits match, but different order: you win $3,000");
			}
	else if( guessDigit1 == lotteryDigit1 && guessDigit2 == lotteryDigit3 && guessDigit3 == lotteryDigit2 )
		{
			System.out.println("digits match, but different order: you win $3,000");
			}
	else if( guessDigit1 == lotteryDigit2 && guessDigit2 == lotteryDigit1 && guessDigit3 == lotteryDigit3 )
		{
			System.out.println("digits match, but different order: you win $3,000");
			}
	else if (guessDigit1 == lotteryDigit2 || guessDigit1 == lotteryDigit1 || guessDigit1 == lotteryDigit3 || 
			guessDigit2 == lotteryDigit2 || guessDigit2 == lotteryDigit1 
			|| guessDigit2 == lotteryDigit3 || guessDigit3 == lotteryDigit2 || guessDigit3 == lotteryDigit1 
			|| guessDigit3 == lotteryDigit3)
	   {
		System.out.println("One digit match: you win $1,000");
		}
	
		else
		  System.out.println("No match : Sorry you don't win anything."); 
	}
}