jsoup检查表是否存在

Question

I have

Element list = doc.select("table").get(0);

some times there is no table present, but I am still doing get so I am

Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

How to get out of this exception? there is no size as this is element

Answer 1

Elements is the object returned from a select.

 Elements tables = doc.select("table");

and it has a size method. So you can call:

 tables.size();