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 was wondering how computationally expensive is using instanceof operator in java and wanted to know if there are any better alternatives available
The alternative is to avoid using
instanceofand design your classes properly (in OO sense).As the
instanceofoperator has a corresponding “instanceof” byte code instruction, there probably won’t be a more performant approach; but this may also depend on how the actual JVM optimizes.