Write a java program to convert char to String by using toString() method.

Sure! Here's a sample Java program to convert a char to a String using the toString() method:

public class CharToStringExample {
   public static void main(String[] args) {
      char c = 'a'; // char to convert
      String str = Character.toString(c); // convert char to String using toString() method
      System.out.println("Converted string: " + str);
   }
}

Running this program will output the following:

Converted string: a

Let me know if you have any other questions!