Java Field Reflection - Getting non-null fields value using reflection

JavaFieldReflection.java

/**
 * Java Field Reflection
 * Getting non-null members (fields) value from parent class using Java Reflection
 * 
 * @author Dharmang Soni <[email protected]>
 */

package com.reflection;

import java.lang.reflect.Field;

public class JavaFieldReflection {
	public static void main(String[] args) {
		ChildClass c = new ChildClass();
		c.test();
	}
}

class ChildClass extends BaseTest {
	protected String name = "Parth Gajjar";
	protected String city = null;
	private Person person = new Person("Dharmang Soni", "Gandhinagar");
}

class BaseTest {

	public void test() {

		// Getting BaseTest class
		Class<?> c = getClass();

		// Looping all fields in current class
		for (Field f : c.getDeclaredFields()) {

			// Required true if you want to access its private members
			f.setAccessible(true);

			// field name
			System.out.print("[Field : " + f.getName());
			// Field type
			System.out.print(", Type : " + f.getType().getName());
			try {
				// Getting instance value (because of we extend BaseTest to our
				// ChildClass we uses "this" in Field.get()"
				Object object = f.get(this);

				// Checking for null assignment
				if (object == null) {
					System.out.print(", Value : null");
				}
				// Checking for String type
				if (object instanceof String) {
					System.out.print(", Value : " + object);
				}
				// Checking for Person class
				if (object instanceof Person) {
					Person col = (Person) f.get(this);
					System.out.print(", Name:  " + col.getName() + ", City: "
							+ col.getCity());
				}

			} catch (Exception e) {
				e.printStackTrace();
			}
			System.out.print("]\n");
		}
	}

}

class Person {
	String name, city;

	public Person(String name, String city) {
		super();
		this.name = name;
		this.city = city;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getCity() {
		return city;
	}

	public void setCity(String city) {
		this.city = city;
	}

}