New to Java

I am trying to write a program that asks the user to enter a string and then asks the user to enter a character. The program is supposed to count and display the number of times that the specified character appears in the string.

So far my code is:

import java.util.Scanner;    // Needed for the Scanner class

public class LetterCounter
{
   public static void main(String[] args)
   {
   	
   	// Create a Scanner object for keyboard input.
    Scanner keyboard = new Scanner(System.in);

    String string;
    char character;
	
    System.out.print("Please enter a string:  ");
    string = keyboard.nextLine();
      
     
    System.out.print("Please enter a character:  ");
    character = keyboard.nextchar();
    
    int letter = string.charAt(character);

    
System.out.println ("The character " + character + 
				   "appears in your sting" + letter +
                                   " times.");


   }
}

The error says "Cannot find symbol method nextchar()"

I also am unsure of how to count the times a character appears in a string.

Any help would be highly appreciated.