Complete the following method that takes a string as a param

Complete the following method that takes a string as a parameter and converts every number in the string to a ’*’. For example, ”It costs $100” is converted to ”It costs $***” public static String Convert(String s) {

Solution

//NumtoStar.java
import java.util.Scanner;
public class NumtoStar
{
   public static String Convert(String s)
   {
      
       StringBuilder result = new StringBuilder(s);
       String output = result.toString();

       for (int i=0; i < s.length() ;i++ )
       {
           char c = s.charAt(i);
           if (Character.isDigit(c))
           {
               result.setCharAt(i,\'*\');      
           }  
           else
           {
               result.setCharAt(i,c);
           }
       }

       output = result.toString();
       return output;
   }
   public static void main(String[] args)
   {
       Scanner sc=new Scanner(System.in);
       System.out.println(\"Enter String: \");
        String str = sc.nextLine();
       System.out.println(\"Result: \" + Convert(str));
   }
}

/*
output:

Enter String: Can you give me 104$. urgently
Result: Can you give me ***$. urgently

*/