Java Programming

Hey guys whats going on? My first post here just got a quick question hopefully.

I need to pass the string as a command line argument in this Palindrome program, how exactly do i do do that?

import javax.swing.JOptionPane;

public class PalindromeIgnoreNonAlphanumeric {
/** Main method */
public static void main(String[] args) {
// Prompt the user to enter a string
String s = JOptionPane.showInputDialog(null,
"Enter a string:", "Example 7.3 Input",
JOptionPane.QUESTION_MESSAGE);

// Declare and initialize output string
String output = "Ignoring non-alphanumeric characters, \nis "
+ s + " a palindrome? " + isPalindrome(s);

// Display the result
JOptionPane.showMessageDialog(null, output,
"Example 7.3 Output", JOptionPane.INFORMATION_MESSAGE);
}

/** Return true if a string is a palindrome */
public static boolean isPalindrome(String s) {
// Create a new string by eliminating non-alphanumeric chars
String s1 = filter(s);

// Create a new string that is the reversal of s1
String s2 = reverse(s1);

// Compare if the reversal is the same as the original string
return s2.equals(s1);
}

/** Create a new string by eliminating non-alphanumeric chars */
public static String filter(String s) {
// Create a string buffer
StringBuffer strBuf = new StringBuffer();

// Examine each char in the string to skip alphanumeric char
for (int i = 0; i < s.length(); i++) {
if (Character.isLetterOrDigit(s.charAt(i))) {
strBuf.append(s.charAt(i));
}
}

// Return a new filtered string
return strBuf.toString();
}

/** Create a new string by reversing a specified string */
public static String reverse(String s) {
StringBuffer strBuf = new StringBuffer(s);
strBuf.reverse(); // Use the reverse method for StringBuffer object
return strBuf.toString();
}
}


Thanks guys appreciate any help