Use the Lottery class to the left as the superclass. Create the PowerBall class as a subclass of Lottery. Override the shuffle method so that it returns an ArrayList of six random integers up to but not including 100.CODE:import java.util.ArrayList;import java.util.Random; class Lottery { public ArrayList<Integer> shuffle() { Random r = new Random(); ArrayList<Integer> nums = new ArrayList<Integer>(); for (int i = 0; i < 5; i++) { int num = r.nextInt(20); nums.add(num); } return nums; }}//add class definitions below this lineclass PowerBall extends Lottery { public ArrayList<Integer> shuffle() { Random r = new Random(); ArrayList<Integer> nums = new ArrayList<Integer>(); for (int i = 0; i < 6; i++) { int num = r.nextInt(100); nums.add(num); } return nums; }}//add class definitions above this linepublic class Exercise1 { public static void main(String[] args) { //add code below this line PowerBall p = new PowerBall(); System.out.println(p.shuffle()); //add code above this line }} Exercise1.javaPolymorphis. ximport java.util.ArrayList;import java.util.Random;CollapsePolymorphism -> Coding Exercises - Polymorphism3class Lottery {public ArrayList shuffle() {Random r = new Random();ArrayList nums = new ArrayList();for (int i = 0; i < 5; i++) {int num = r.nextInt(20);nums.add (num);Polymorphism Exercise 15-67Exercise 191011}12return nums;Use the Lottery class to the left as the superclass. Create the13}}PowerBall class as a subclass of Lottery . Override the shuffle14method so that it returns an ArrayList of six random integers up to1516//add class definitions below this linebut not including 100.17class PowerBall extends Lottery {public ArrayList shuffle() {Random r = new Random ();ArrayList nums = new ArrayList();for (int i = 0; i < 6; i++) {int num = r.nextInt(100);nums.add (num);}18 -19 -TRY IT202122 -23Submit your code for evaluation.2425Check It!26return nums;27}282930//add class definitions above this line31Nextpublic class Exercisel {public static void main(String[] args) {32 -33 -3435//add code below this line57% (24:20)Java 35//add code below this line36PowerBall p = new PowerBall();System.out.println(p.shuffle () );373839//add code above this line}}404142

Answered: Use the Lottery class to the left as…

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

Use the Lottery class to the left as the superclass. Create the PowerBall class as a subclass of Lottery. Override the shuffle method so that it returns an ArrayList of six random integers up to but not including 100.

CODE:

import java.util.ArrayList;
import java.util.Random;

class Lottery {
public ArrayList<Integer> shuffle() {
Random r = new Random();
ArrayList<Integer> nums = new ArrayList<Integer>();
for (int i = 0; i < 5; i++) {
int num = r.nextInt(20);
nums.add(num);
}
return nums;
}
}

//add class definitions below this line

class PowerBall extends Lottery {
public ArrayList<Integer> shuffle() {
Random r = new Random();
ArrayList<Integer> nums = new ArrayList<Integer>();
for (int i = 0; i < 6; i++) {
int num = r.nextInt(100);
nums.add(num);
}
return nums;
}
}

//add class definitions above this line

public class Exercise1 {
public static void main(String[] args) {

//add code below this line

PowerBall p = new PowerBall();
System.out.println(p.shuffle());

//add code above this line
}
}

Exercise1.java
Polymorphis. x
import java.util.ArrayList;
import java.util.Random;
Collapse
Polymorphism -> Coding Exercises - Polymorphism
3
class Lottery {
public ArrayList<Integer> shuffle() {
Random r = new Random();
ArrayList<Integer> nums = new ArrayList<Integer>();
for (int i = 0; i < 5; i++) {
int num = r.nextInt(20);
nums.add (num);
Polymorphism Exercise 1
5-
6
7
Exercise 1
9
10
11
}
12
return nums;
Use the Lottery class to the left as the superclass. Create the
13
}
}
PowerBall class as a subclass of Lottery . Override the shuffle
14
method so that it returns an ArrayList of six random integers up to
15
16
//add class definitions below this line
but not including 100.
17
class PowerBall extends Lottery {
public ArrayList<Integer> shuffle() {
Random r = new Random ();
ArrayList<Integer> nums = new ArrayList<Integer>();
for (int i = 0; i < 6; i++) {
int num = r.nextInt(100);
nums.add (num);
}
18 -
19 -
TRY IT
20
21
22 -
23
Submit your code for evaluation.
24
25
Check It!
26
return nums;
27
}
28
29
30
//add class definitions above this line
31
Next
public class Exercisel {
public static void main(String[] args) {
32 -
33 -
34
35
//add code below this line
57% (24:20)
Java

35
//add code below this line
36
PowerBall p = new PowerBall();
System.out.println(p.shuffle () );
37
38
39
//add code above this line
}
}
40
41
42

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