Question

1. Create List

2. Create Random integers

3. Search List

Write a program that gets random integers and populates a list, then searches the list

1. Write a program that creates an empty list

2. Populate the list with 100 random integers

3. After creating the list, print the length of elements in the list

4. Select a range of numbers as 10 – 20

5. Find out the number of times ‘15’ appears in the list and print it as

"The number of times 15 appears in the list is "

Answer 1

Since you have not mentioned the language of your preference, I am providing the code in Java.

CODE

import java.util.Arrays;

import java.util.Random;

public class Main {

public static void main(String[] args) {

int arr[] = new int[100];

Random rand = new Random();

for (int i=0; i<100; i++) {

arr[i] = rand.nextInt(11) + 10;

}

System.out.println("Size of list is: " + arr.length);

System.out.println("The list is: \n" + Arrays.toString(arr));

int count = 0;

for (int i=0; i<100; i++) {

if (arr[i] == 15) {

count ++;

}

}

System.out.println("The number of times 15 appears in the list is: " + count);

}

}

OUTPUT

Size of list is: 100

The list is:

[11, 20, 17, 16, 16, 13, 13, 14, 11, 18, 10, 12, 11, 17, 17, 15, 14, 12, 11, 20, 20, 16, 10, 12, 11, 13, 18, 10, 20, 14, 16, 20, 18, 15, 18, 15, 12, 11, 16, 13, 14, 13, 19, 14, 15, 15, 18, 16, 16, 11, 18, 12, 18, 14, 16, 18, 17, 13, 15, 19, 10, 19, 17, 14, 19, 10, 17, 13, 20, 20, 16, 18, 18, 20, 20, 13, 13, 14, 12, 15, 16, 11, 16, 17, 14, 20, 12, 16, 16, 14, 16, 20, 18, 18, 17, 18, 16, 18, 20, 11]

The number of times 15 appears in the list is: 7