public abstract String toString()

// Java program to demonstrate
// the toString() Method.
  
class GFG {
    public static void main(String[] args)
    {
  
        // create a StringBuffer object
        // with a String pass as parameter
        StringBuffer str
            = new StringBuffer("GeeksForGeeks");
  
        // print string
        System.out.println("String contains = "
                           + str.toString());
    }
}

String contains = GeeksForGeeks

// Java program to demonstrate
// the toString() Method.
  
class GFG {
    public static void main(String[] args)
    {
  
        // create a StringBuffer object
        // with a String pass as parameter
        StringBuffer str
            = new StringBuffer(
                "Geeks for Geeks contribute");
  
        // print string
        System.out.println("String contains = "
                           + str.toString());
    }
}

String contains = Geeks for Geeks contribute