The method converts any object to a String.

a.

replace()

b.

substring()

c.

toString()

d.

convertString()

C.  toString()

Explanation:

The method  toString () in Java programming language will convert any object to a String. This method is inbuilt in Java and will always return the String object corresponding to an integers value, note also that this method does not accept any parameters. For example if the method is called on an integer data type, the string value that represents the integer data type is returned.  Consider the code snippet below

public class ToStringMethod {

     public static void main(String args[]) {

           Integer x = 5;

           System.out.println(x.toString());

     }

   }