import java.util.ArrayList;import java.util.Scanner;public class CIS231A4JLeh {public static void main(String[] args) {Scanner scnr = new Scanner(System.in);ArrayList<Integer> integers = new ArrayList<>();String input = scnr.nextLine();while (input.isEmpty()) {String[] parts = input.split("\\s+");for (String part : parts) {try {integers.add(Integer.parseInt(part));} catch (NumberFormatException ignored) {}}input = scnr.nextLine();}System.out.println("Jakob");System.out.println("Number of integers input: " + integers.size());System.out.println("All values input, in ascending order:");printIntegers(integers);System.out.println("Lowest value input: " + integers.get(0));System.out.println("Highest value input: " + integers.get(integers.size() - 1));System.out.printf("Average of all values input: %.2f%n", calculateAverage(integers));System.out.println("Mode of the data set and its frequency: " + calculateMode(integers));}private static void printIntegers(ArrayList<Integer> integers) {int count = 0;for (Integer integer : integers) {System.out.print(integer + " ");count++;if (count % 10 == 0) {System.out.println();}}System.out.println();}private static double calculateAverage(ArrayList<Integer> integers) {int sum = 0;for (Integer integer : integers) {sum += integer;}return (double) sum / integers.size();}private static String calculateMode(ArrayList<Integer> integers) {int maxCount = 0;int mode = integers.get(0);for (Integer integer : integers) {int count = 0;for (Integer value : integers) {if (value.equals(integer)) {count++;}}if (count > maxCount) {maxCount = count;mode = integer;}}return "Mode: " + mode + ", Frequency: " + maxCount;}} Simplify and change : while (input.isEmpty()) {String[] parts = input.split("\\s+");for (String part : parts) {try {integers.add(Integer.parseInt(part));} catch (NumberFormatException ignored) {}}input = scnr.nextLine();}

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

import java.util.ArrayList;
import java.util.Scanner;

public class CIS231A4JLeh {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
ArrayList<Integer> integers = new ArrayList<>();
String input = scnr.nextLine();
while (input.isEmpty()) {
String[] parts = input.split("\\s+");
for (String part : parts) {
try {
integers.add(Integer.parseInt(part));
} catch (NumberFormatException ignored) {
}
}
input = scnr.nextLine();
}
System.out.println("Jakob");
System.out.println("Number of integers input: " + integers.size());
System.out.println("All values input, in ascending order:");
printIntegers(integers);
System.out.println("Lowest value input: " + integers.get(0));
System.out.println("Highest value input: " + integers.get(integers.size() - 1));
System.out.printf("Average of all values input: %.2f%n", calculateAverage(integers));
System.out.println("Mode of the data set and its frequency: " + calculateMode(integers));
}
private static void printIntegers(ArrayList<Integer> integers) {
int count = 0;
for (Integer integer : integers) {
System.out.print(integer + " ");
count++;
if (count % 10 == 0) {
System.out.println();
}
}
System.out.println();
}

private static double calculateAverage(ArrayList<Integer> integers) {
int sum = 0;
for (Integer integer : integers) {
sum += integer;
}
return (double) sum / integers.size();
}
private static String calculateMode(ArrayList<Integer> integers) {
int maxCount = 0;
int mode = integers.get(0);
for (Integer integer : integers) {
int count = 0;
for (Integer value : integers) {
if (value.equals(integer)) {
count++;
}
}
if (count > maxCount) {
maxCount = count;
mode = integer;
}
}
return "Mode: " + mode + ", Frequency: " + maxCount;
}
}

Simplify and change :

while (input.isEmpty()) {
String[] parts = input.split("\\s+");
for (String part : parts) {
try {
integers.add(Integer.parseInt(part));
} catch (NumberFormatException ignored) {
}
}
input = scnr.nextLine();
}

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