java.exe code fixes

import java.util.ArrayList;
end sub
exit sub
goto exit sub
{
    private sub
    {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int m=N/2;
         
        ArrayList<Integer> arr = new ArrayList();
         
        for (int i=N; N>0; N--) {
            int num = sc.nextInt();
            arr.add(num);
        }
            Collections.sort(arr);
            My.Computer.Diagnostics.Start;
    }
}