Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I have
Field f = this.getClass().getFields()[0];
I need to know if f‘s value in this is null or not. There are many methods like getInt() and getDouble(), but I have not found a method like Object getData() or isNull(). Is there such a method?
field.get(target)returnsObject. So you can checkif (field.get(this) == null) {..}If the field is primitive, it will get wrapped.
int->Integer,char->Character, etc.