help using equalIgnoreCase in an array

[tonmachine]

I'm supposed to take user input and create a shopping list with it, but the user can't add the same item to the list twice. I'm trying to use equalsIgnoreCase to check user input and see if it is already on the list (an array of items), and if it is, have it output a message and exit the system. The code below is what I have so far, but for some reason when I run it, it automatically outputs the message and exits after the second input, even when that input is not already on the list. I can't figure out what I'm doing wrong - any advice?

public void itemName()
{
boolean found = false;
for (int i = 0; i < preSortedList.length; i++) {
System.out.println("Enter the name of an item you want to buy");
Scanner keyboard = new Scanner(System.in);
name = keyboard.next();
for (int j = 1; !found && j < 7; j++) {
if (name.equalsIgnoreCase(preSortedList[j-1])) {
found = true;
System.out.println("That item is already on the list. Please start over and try again");
System.exit(0);
}
else {
preSortedList[i] = name;
}
}

[AndrewM16921]

Please wrap your code with code tags like this:

public void itemName()
{
	boolean found = false;
	for(int i = 0; i < preSortedList.length; i++)
	{
		System.out.println("Enter the name of an item you want to buy");
		Scanner keyboard = new Scanner(System.in);
		name = keyboard.next();
		for(int j = 1; !found && j < 7; j++)
		{
			if(name.equalsIgnoreCase(preSortedList[j - 1]))
			{
				found = true;
				System.out.println("That item is already on the list. Please start over and try again");
				System.exit(0);
			}
			else
			{
				preSortedList[i] = name;
			}
		}
	}
}

Now, I suggest making a method that checks if the value is in the array:
Something like this:

public static boolean arrayContains(String[] arr, String val)
{
	for(String str : arr) //for every string in the array
	{
		if(str.equalsIgnoreCase(val)) //if they are equalIgnoreCase
			return true; //return true if there is a match
	}
	return false; //return false if there is no match
}