Question

Write a program that inserts 25 random integers from 0 to 100 in order into a LinkedList object.The program must:• sort the elements,• then calculate the sum of the elements, and• calculate the floating-point average of the elements.Utilizing Java htp 10 late objects approach

Answer 1

Answer:

Written in Java

import java.util.Collections;

import java.util.Random;

import java.util.LinkedList;

class Main {

 public static void main(String[] args) {

   LinkedList<Integer> myList = new LinkedList<Integer>();

   Random rand = new Random();

   int randnum;

   int sum = 0;

   for(int i = 0;i<25;i++)     {

       randnum = rand.nextInt(101);

       myList.add(new Integer(randnum));    

       sum+=randnum;

   }

   Collections.sort(myList);

   System.out.println(myList);

   System.out.println("Average: "+(float)sum/25);

 }

}

Explanation:

import java.util.Collections;

import java.util.Random;

import java.util.LinkedList;

class Main {

 public static void main(String[] args) {

This declares a linkedlist as integer

   LinkedList<Integer> myList = new LinkedList<Integer>();

This declares random variable rand

   Random rand = new Random();

This declares randnum as integer

   int randnum;

This declares and initializes sum to 0

   int sum = 0;

The following iteration generates random numbers, inserts them into the linkedlist and also calculates the sum of the generated numbers

   for(int i = 0;i<25;i++)    {

       randnum = rand.nextInt(101);

       myList.add(new Integer(randnum));    

       sum+=randnum;

   }

This sorts the list

   Collections.sort(myList);

This prints the list

   System.out.println(myList);

This calculates and prints a floating-point average

   System.out.println("Average: "+(float)sum/25);

 }

}