Is it possible to get the declaration name of an object at runtime in java?

Question

Lets say i have a a button somewhere in the code: \"JButton closeButton\". I dont know that it\'s called \"closeButton\" but that\'s what i want to find out.

At run

Answer 1

import java.lang.reflect.*;


public class field1 {
      private double d;
      public static final int i = 37;
      String s = "testing";

  public static void main(String args[])
  {
     try {
        Class cls = Class.forName("field1");

        Field fieldlist[] 
          = cls.getDeclaredFields();
        for (int i 
          = 0; i < fieldlist.length; i++) {
           Field fld = fieldlist[i];
           System.out.println("name
              = " + fld.getName());
           System.out.println("decl class = " +
                       fld.getDeclaringClass());
           System.out.println("type
              = " + fld.getType());
           int mod = fld.getModifiers();
           System.out.println("modifiers = " +
                      Modifier.toString(mod));
           System.out.println("-----");
        }
      }
      catch (Throwable e) {
         System.err.println(e);
      }
   }


}

This should give you a list of all the fields of the class.