inserting an element in a given array || java

 import java.util.*;

public class Main

{

  public static void insert (int arr[], int num, int index, int size)

  {

    for (int i = size; i > index; i--)

      {

arr[i] = arr[i - 1];

      }

    size++;

    arr[index] = num;

    //return arr;

  }

  

  public static void display(int arr[],int size)

  {

 System.out.println ("the full array :");

    for (int i = 0; i <= size; i++)

      System.out.println (arr[i]);

  }

  public static void main (String[]args)

  {

    Scanner sc = new Scanner (System.in);

    int[] arr = new int[10];

    System.out.

      printf ("Enter the number of elements should be less than 10\n");

    int size = sc.nextInt ();

    System.out.printf ("Enter the array elemetns\n");

    for (int i = 0; i < size; i++)

      {

arr[i] = sc.nextInt ();

      }

    // till here array is stored

    System.out.printf ("Enter the Index you want enter that element\n");

    int index = sc.nextInt ();

    System.out.printf ("Enter the element to be inserted\n");

    int num = sc.nextInt ();

    insert (arr, num, index, size);

    

    display(arr,size);

    /*System.out.println ("the full array :");

    for (int  = 0; i <= size; i++)

      System.out.println (arr[i]);

*/

  }

}