See if field exists in class

Question

I have a class with various variables

public class myClass{

    public int id;
    public String category;
    public String description;
    public String star         


        

Answer 1

Your compiler usually knows that pretty well, and the runtime lets you examine loaded classes with reflection.

Object someObject = ...
Class someClass = someObject.getClass();
Field someField = someClass.getField("foo");

The getField() method will throw an exception if the field can not be found.