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  1. import java.io.*;
  2. import java.lang.reflect.*;
  3. import java.util.ArrayList;
  4. import java.util.*;
  5.  
  6. class Play {
  7. 	public ArrayList<Integer> list = new ArrayList<>();
  8. 	public int[] iarray = { 1, 2, 3 };
  9. 	public boolean[] barray = { true, false };
  10.  
  11. 	public static void main(String[] args) throws IOException, IllegalAccessException {
  12. 		Play o = new Play();
  13. 		o.list.add(1);
  14. 		o.list.add(2);
  15.  
  16. 		Field[] fields = o.getClass().getDeclaredFields();
  17. 		for (Field field : fields) {
  18. 			Object v = field.get(o);
  19. 			if (v.getClass().isArray())
  20. 				System.out.println(Arrays.toString(toArray(v)));
  21. 			else
  22. 				System.out.println(v);
  23. 		}
  24. 	}
  25.  
  26. 	private static Object[] toArray(Object obj) {
  27. 		int len = Array.getLength(obj);
  28. 		Object[] res = new Object[len];
  29. 		for (int i = 0; i < len; i++)
  30. 			res[i] = Array.get(obj, i);
  31. 		return res;
  32. 	}
  33. }
Success #stdin #stdout 0.06s 50888KB
comments (?)
stdin 
Standard input is empty
stdout 
[1, 2]
[1, 2, 3]
[true, false]
https://ideone.com/U7ul5i
language:
Java (12.0.1)
created:
2 years ago
visibility:
public

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