[Crow T. Robot]

For the palindrone program, I may not necessarily need a stack, but for my assignment must use one. Here's now what I have (though I edited the earlier post I made with the code I now have). Check above for the main things I need help on with this one.

public class Lab6 extends List
{
private String string;

//create stack 
Stack stack=new Stack();

//ask user for a string
string=JOptionPane.ShowInputDialog("Enter a string: ");

//add object to stack
public synchronized void push(string)
{
insertAtFront(string);
}

//remove object from stack
public synchronized String pop() throws EmptyListException
{
return removeFromFront();
string=new string1
}

//compare characters in string for a palindrone
public static void main(String args[])
if (
{
	string=string1
}

then
{
	JOptionPane.ShowDialog("This is a palindrone.");
}

else
{
	JOptionPane.ShowDialog("This is not a palindrone.");
}
}