Sort students) Rewrite Programming Exercise 7.17 using streams. Define a class named Student with data fields name and score and their getter methods. Store each student in a Student object. package Exercise_30_9; import java.util.Scanner; public class Original { publicstaticvoidmain(String[] args) { Scannerinput = newScanner(System.in); System.out.print("Please enter the number of students:"); intnumStudents = input.nextInt(); double[] scores = newdouble[numStudents]; String[] names = newString[numStudents]; for (inti = 0; i < names.length; i++) { System.out.print("Enter a student name:"); names[i] = input.next(); System.out.print("Enter the students score:"); scores[i] = input.nextDouble(); } sortArray(scores, names); System.out.println("The student names in decreasing order of their scores are: "); for (inti = 0; i < scores.length; i++) { System.out.println(names[i] + " " + scores[i]); } } publicstaticvoidsortArray(double[] arr, String[] array) { for (inti = 0; i < arr.length; i++) { doublecurrentMax = arr[i]; intcurrentIndex = i; Stringtemp; for (intj = i + 1; j < arr.length; j++) { if (arr[j] > currentMax) { currentMax = arr[j]; currentIndex = j; } } if (currentIndex != i) { temp = array[i]; array[i] = array[currentIndex]; array[currentIndex] = temp; arr[currentIndex] = arr[i]; arr[i] = currentIndex; } } } }

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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(Sort students) Rewrite Programming Exercise 7.17 using streams. Define a class named Student with data fields name and score and their getter methods. Store each student in a Student object.

package Exercise_30_9;

import java.util.Scanner;

public class Original {

publicstaticvoidmain(String[] args) {

Scannerinput = newScanner(System.in);

System.out.print("Please enter the number of students:");

intnumStudents = input.nextInt();

double[] scores = newdouble[numStudents];

String[] names = newString[numStudents];

for (inti = 0; i < names.length; i++) {

System.out.print("Enter a student name:");

names[i] = input.next();

System.out.print("Enter the students score:");

scores[i] = input.nextDouble();

}

sortArray(scores, names);

System.out.println("The student names in decreasing order of their scores are: ");

for (inti = 0; i < scores.length; i++) {

System.out.println(names[i] + " " + scores[i]);

}

publicstaticvoidsortArray(double[] arr, String[] array) {

for (inti = 0; i < arr.length; i++) {

doublecurrentMax = arr[i];

intcurrentIndex = i;

Stringtemp;

for (intj = i + 1; j < arr.length; j++) {

if (arr[j] > currentMax) {

currentMax = arr[j];

currentIndex = j;

}

if (currentIndex != i) {

temp = array[i];

array[i] = array[currentIndex];

array[currentIndex] = temp;

arr[currentIndex] = arr[i];

arr[i] = currentIndex;

}

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