Back

Explore Courses Blog Tutorials Interview Questions
0 votes
1 view
in Java by (10.2k points)
I'm playing around with Java's reflection API and trying to handle some fields. Now I'm stuck with identifying the type of my fields. Strings are easy, just do myField.getType().equals(String.class). The same applies for other non-derived classes. But how do I check derived classes? E.g. LinkedList as subclass of List. I can't find any isSubclassOf(...) or extends(...) method. Do I need to walk through all getSuperClass() and find my supeclass by my own?

1 Answer

0 votes
by (46k points)

Another option is instanceof:

Object o =...

if (o instanceof Number) {

  double d = ((Number)o).doubleValue(); //this cast is safe

}

Related questions

0 votes
1 answer
0 votes
1 answer
0 votes
1 answer

Browse Categories

...