Java tutorial
import java.lang.reflect.Field; public class Main { public static void main(String[] args) { try { MyClass c = new MyClass(); Class cls = c.getClass(); Field lVal = cls.getDeclaredField("l"); System.out.println("Field = " + lVal.toString()); } catch (Exception e) { System.out.println(e.toString()); } } } class MyClass { public MyClass() { // no argument constructor } public MyClass(long l) { this.l = l; } long l = 123L; }