Java tutorial
import java.lang.reflect.Field; public class Main { public static void main(String[] argv) throws Exception { Class cls = java.awt.Point.class; Field field = cls.getField("x"); // Get value // field.getInt(object); // Set value // field.setInt(object, 123); // Get value of a static field field.getInt(null); // Set value of a static field field.setInt(null, 123); } }