!NEWBIE! - Help me please

Question

Ok im in University and i havent long started diong Java prog, im writing a program and i know how to do most of it however i need to ask a simple question!
How to i read a String from the user using JOption.showInputDialogue and the test the string with an if statement to see if its a certain string, heres something that i tried...
import javax.swing.JOptionPane;
public class TestCalc {
public static void main( String args[] ) {
String input;
input = JOptionPane.showInputDialog(null, "Input Mark");
if (input == "A") {
System.out.println("Works");
System.exit(1);
It compiled ok, but when i entered A it just said "Press any key to end {etc}"
i also rtied parsing the string to a char but wouldnt work please help, thanx.

Answer 1

nevermind, found                
if (input.equals("A"))
System.out.println("YAY");