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