JSON array get length

Question

I can\'t get the array length of the JSON array. when I using length(); method it is not working, it show as red underline in Netbeans

this is the source code

Answer 1

Note: if you're using(importing) org.json.simple.JSONArray, you have to use JSONArray.size() to get the data you want. But use JSONArray.length() if you're using org.json.JSONArray.