Java tutorial
import org.apache.commons.lang.ObjectUtils; public class MainClass { public static void main(String[] args) { //Create ObjectUtilsTrial instance MyClass one = new MyClass(); MyClass two = one; //Same Reference MyClass three = new MyClass(); //New Object MyClass four = null; //Pass null get empty string System.out.print("6) Pass null and get back an Empty string >>>"); System.out.println("**" + ObjectUtils.toString(null) + "**"); } } class MyClass { public String toString() { return "toString Output"; } }