How to get an array from user without knowing the number of elements in the array?

Question

Array using C

Answer 1

use dynamic array ...

Answer 2

The user have to enter number of elements and then enter the values.

Java:

Scanner scan = new Scanner(System.in);

int n = scan.nextInt();
int[] arr = new int[n];

for(int i = 0; i < n; i++){
arr[i] = scan.nextInt();
}

Answer 3

On C++ use vectors.

Answer 4

Use ArrayList in Java

Answer 5

This code allocate and reallocate a buffer (C-String) as necessary to allow dynamically sized input. Maybe you can expand from the idea, and adjust to your fits.

https://code.sololearn.com/cViPoPhBTG48/?ref=app