java - javax.json - 如何检查值是否为字符串

I have a database I made in Json. I have this parsed, and have the code iterating through a Json array, which contains several Json objects. Finally, I also am iterating through the values in the Json objects. My problem is that I need to check if the value that the iterator is on, is a string or an array. I have a database I made in Json. I have this p