```
package code;
public class CharacterCounter
{
/**
* int numberOf(String s, char c)
*
* Returns the number of time the char c occurs in the String s
*
* @param s is the original String
* @param c is the char whose count in s we want to determine
* @return the number of occurrences of c in s
*
* Some examples:
*
* if s is "", then no matter what c is the answer is 0 (zero)
* if s is "abcdefg", and c is 'f', then the correct answer is 1
* if s is "farfalle", and c is 'f', then the correct answer is 2
*
* The only methods you may call on the String s are charAt(int) and length().
*/
public int numberOf(String s, char c)
{
return 0;
}
/**
* int numberOf(String s, String characters)
*
* Returns the number of times any of the chars in the second String occur in the first String
*
* if s is "", then no matter what characters is the answer is 0 (zero)
* if s is "abcdefg", and characters is "f", then the correct answer is 1
* if s is "farfalle", and characters is "alf", then the correct answer is 6
*
* Some examples:
*
* The only methods you may call on either String are charAt(int) and length().
*
* @param s is the original String
* @param characters is the String whose constituent character counts in s we want to determine
* @return the number of occurrences of the chars in characters in s
*/
public int numberOf(String s, String characters) {
return 0;
}
}
```

Trying to this but need some help!