public String toString()

public String toString(String enc) throws UnsupportedEncodingException

The noargs version uses the platform's default encoding (most commonly ISO Latin-1).
The second method allows you to specify the encoding to be used.

public String toString()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object.
The result should be a concise but informative representation that is easy for a person to read.
It is recommended that all subclasses override this method. The toString method for class Object returns a string consisting of

1. the name of the class of which the object is an instance of,
2. the at-sign character `@', and
3. the unsigned hexadecimal representation of the hash code of the object.

In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())