How to write a static method for an array list.

[SLDenman]

I have created a vowel counting program and I'm not sure how to write the static method that accepts the String as a parameter. Can anyone help me write it?

//import statement for ArrayList
import java.util.ArrayList;
 
public class countingVowels {
 
 
    public class VowelsProgram 
    {
        public static void main(String args[])
        {
            //create ArrayList that stores String object
            ArrayList actor = new ArrayList();
 
            //add Indian actor names to above ArrayList
            actor.add("Amitabh Bachan");
            actor.add("Rajnikanth");
            actor.add("Kamal Hassan");
            actor.add("Shahrukh Khan");
            actor.add("Akshay Kumar");
 
            //Write a loop statement that calls countingVowels method for each item in the ArrayList
            //and prints number of occurrence of vowels in the item.
             int aCounter = 0;
             int eCounter = 0;
             int iCounter = 0;
             int oCounter = 0;
             int uCounter = 0;
 
 
             String line, temp;
             int letter;
 
             for (int i=0; i<=letter; i++)
 
            if (line.charAt(i) == 'a')
                 aCounter++;
 
                else if (line.charAt(i) == 'e')
                 eCounter++;
 
                else if (line.charAt(i) == 'i')
                 iCounter++;
 
                else if (line.charAt(i) == 'o')
                 oCounter++;
 
                System.out.println ("Number of 'a': " +aCounter);
                System.out.println ("Number of 'e': " +eCounter);
                System.out.println ("Number of 'i': " +iCounter);
                System.out.println ("Number of 'o': " +oCounter);
                System.out.println ("Number of 'u': " +uCounter);
 
 
        }
 
        //Write a static countingVowels method that accepts String as parameter.
        //this method returns integer array contains count of vowels character
        //occurrence in the parameter.
 
return ;
    }
 
}
 

[Dheeraj Joshi]

You have following code posted.

int letter;
for (int i=0; i<=letter; i++)
 

You have letter declared but where is the initialization? What value does letter have?

Similar story with variable line of type String

String line, temp;
if (line.charAt(i) == 'a')
      aCounter++;
 

There will be no String literal gets stored in the variable line.

Regards
Dheeraj Joshi