10. Lottery Application Write a Lottery class that simulates a lottery. The class should have an array of five integers named lotteryNumbers. The constructor should use the Random class (from the Java API) to generate a random number in the range of 0 through 9 for each element in the array. The class should also have a method that accepts an array of five integers that represent a per- son's lottery picks. The method is to compare the corresponding elements in the two arrays and return the number of digits that match. For example, the following shows the lotteryNumbers array and the user's array with sample numbers stored in each. There are two matching digits (elements 2 and 4). lotteryNumbers array: User's array: 7 4 4 2 9 1 3 9 7 3 In addition, the class should have a method that returns a copy of the lotteryNumbers array. Demonstrate the class in a program that asks the user to enter five numbers. The program should display the number of digits that match the randomly generated lottery numbers. If all of the digits match, display a message proclaiming the user a grand prize winner.

10. Lottery Application Write a Lottery class that simulates a lottery. The class should have an array of five integers named lotteryNumbers. The constructor should use the Random class (from the Java API) to generate a random number in the range of 0 through 9 for each element in the array. The class should also have a method that accepts an array of five integers that represent a per- son's lottery picks. The method is to compare the corresponding elements in the two arrays and return the number of digits that match. For example, the following shows the lotteryNumbers array and the user's array with sample numbers stored in each. There are two matching digits (elements 2 and 4). lotteryNumbers array: User's array: 7 4 4 2 9 1 3 9 7 3 In addition, the class should have a method that returns a copy of the lotteryNumbers array. Demonstrate the class in a program that asks the user to enter five numbers. The program should display the number of digits that match the randomly generated lottery numbers. If all of the digits match, display a message proclaiming the user a grand prize winner.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

10. Lottery Application
Write a Lottery class that simulates a lottery. The class should have an array of five integers
named lotteryNumbers. The constructor should use the Random class (from the Java API) to
generate a random number in the range of 0 through 9 for each element in the array. The
class should also have a method that accepts an array of five integers that represent a per-
son's lottery picks. The method is to compare the corresponding elements in the two arrays
and return the number of digits that match. For example, the following shows the
lotteryNumbers array and the user's array with sample numbers stored in each. There are
two matching digits (elements 2 and 4).
lotteryNumbers array:
User's array:
7 4
4
2
1 3
7 3
In addition, the class should have a method that returns a copy of the lotteryNumbers array.
Demonstrate the class in a program that asks the user to enter five numbers. The program
should display the number of digits that match the randomly generated lottery numbers. If
all of the digits match, display a message proclaiming the user a grand prize winner.

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