Write a program to accept a list of 20 integers. Sort the first 10 numbers in ascending order and next the 10 numbers in descending order by using 'Bubble Sort' technique. Finally, print the complete list of integers.

import java.util.Scanner;
public class round
{
public static void main(String[]args)
{
Scanner in = new Scanner(System.in);
int arr[] = new int[20];
System.out.println("Enter 20 numbers:");
for (int i = 0; i < arr.length; i++)
{
arr[i] = in.nextInt();
}
for (int i = 0; i < arr.length / 2 - 1; i++)
{
for (int j = 0; j < arr.length / 2 - i - 1; j++)
{
if (arr[j] > arr[j + 1])
{
int t = arr[j + 1];
arr[j + 1] = arr[j];
arr[j] = t;
}
}
}

for (int i = 0; i < arr.length / 2 - 1; i++)
{
for (int j = arr.length / 2; j < arr.length - i - 1; j++)
{
if (arr[j] < arr[j + 1])
{
int t = arr[j + 1];
arr[j + 1] = arr[j];
arr[j] = t;
}
}
}

System.out.println("\nSorted Array:");
for (int i = 0; i < arr.length; i++)
{
System.out.print(arr[i] + " ");
}
}
}