Java inherits the Magic "+" sign

Sample program:

 Public class fruit{            public  String ToString ()    {        return "Fruit ToString." ;    }      Public Static void Main (String args[])    {        Fruit f=new  Fruit ();        System.out.println ("f=" +f);     //     System.out.println ("f=" +f.tostring ());     }}

Results:

Cause Analysis:

Fruit class covers the Object Class of toString method.

in the "+" in the Operation , when any one object is associated with a String object, when it is connected, it is implicitly called by its toString () method, by default, this method returns " class name @ + hashcode " . To return meaningful information, subclasses can override toString () method.

Java inherits the Magic "+" sign