Question

Write a program in Java.

Ask the user how many integers that he/she wants to enter. Using a for loop, ask the user for that many integers. Then, display all those integers.

view required output

Standard Input
20ENTER 500ENTER 400ENTER 300ENTER 550ENTER 600ENTER 700ENTER -3ENTER 0ENTER 50ENTER 60ENTER 40ENTER 13ENTER 14ENTER 80ENTER 90ENTER 100ENTER 777ENTER 1024ENTER 20ENTER 22

How many integers do you have? (Max 20)\n
Enter element for subscript 0\n
Enter element for subscript 1\n
Enter element for subscript 2\n
Enter element for subscript 3\n
Enter element for subscript 4\n
Enter element for subscript 5\n
Enter element for subscript 6\n
Enter element for subscript 7\n
Enter element for subscript 8\n
Enter element for subscript 9\n
Enter element for subscript 10\n
Enter element for subscript 11\n
Enter element for subscript 12\n
Enter element for subscript 13\n
Enter element for subscript 14\n
Enter element for subscript 15\n
Enter element for subscript 16\n
Enter element for subscript 17\n
Enter element for subscript 18\n
Enter element for subscript 19\n
Here are all of those numbers\n
500\n
400\n
300\n
550\n
600\n
700\n
-3\n
0\n
50\n
60\n
40\n
13\n
14\n
80\n
90\n
100\n
777\n
1024\n
20\n
22\n

Test Case 2

Standard Input
1ENTER -54

How many integers do you have? (Max 20)\n
Enter element for subscript 0\n
Here are all of those numbers\n
-54\n

Test Case 3

Standard Input
9ENTER 9ENTER 8ENTER 7ENTER 6ENTER 7ENTER 8ENTER 2ENTER 3ENTER 4

How many integers do you have? (Max 20)\n
Enter element for subscript 0\n
Enter element for subscript 1\n
Enter element for subscript 2\n
Enter element for subscript 3\n
Enter element for subscript 4\n
Enter element for subscript 5\n
Enter element for subscript 6\n
Enter element for subscript 7\n
Enter element for subscript 8\n
Here are all of those numbers\n
9\n
8\n
7\n
6\n
7\n
8\n
2\n
3\n
4\n

Test Case 4

Standard Input
3ENTER 100ENTER 200ENTER 300

How many integers do you have? (Max 20)\n
Enter element for subscript 0\n
Enter element for subscript 1\n
Enter element for subscript 2\n
Here are all of those numbers\n
100\n
200\n
300\n

Answer 1

import java.util.Scanner;

public class ReadOutputArray {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("How many integers do you have? (Max 20)");
        int[] arr = new int[in.nextInt()];
        for (int i = 0; i < arr.length; i++) {
            System.out.println("Enter element for subscript " + i);
            arr[i] = in.nextInt();
        }
        System.out.println("Here are all of those numbers");
        for (int i = 0; i < arr.length; i++) {
            System.out.println(arr[i]);
        }
    }
}