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

You can do it using reflection, though I would recommend to check if it is really needed or maybe there's another way to do it.

For example:

Class clz = MyClass.class;
try {
    Field f = clz.getField("foo")
}
catch ( NoSuchFieldException ex) {
    // field doesn't exist
}
catch (SecurityException ex) {
    // no access to field
}