Not reading array properly and other things.

[rokit boy]

My code:

package org.Bart.Tests.AI;

import java.io.*;

public class Main {
	public static void print(String a) {
		System.out.println(a);
	}
	public static void prnt(String[] a) {
		System.out.println(a);
	}
	public static void main(String[] args) {
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		String input;
		String[] brain;
		brain = new String[30000];
		brain[0] = "Hello|Hi";
		brain[1] = "Bye|Goodbye";
		int currentResponse = 2;
		try {
			input = reader.readLine();
			for (String thing : brain) {
				if (thing != null) {
					if (input != "") {
						print (thing);
					thing.substring(0,thing.indexOf("|") );
					if (thing.contains(input))  {
						print("[AI] " + thing.substring(thing.indexOf("|") + 1));
					} else {
						print("[AI] What does that mean? Can you give a response to this?");
						String response = reader.readLine();
						String aa = input + "|" + response;
						//print (aa);
						brain[currentResponse] = aa;
						currentResponse++;
						print("[AI] Thanks, I've learnt that when somebody says " + input + " then I say " + response + ".");
					}
					} else {
						print ("We have a problem");
					}
				}
			}
		} catch (IOException e) {
			print("You suck at typing");
		}
	}
}

I have some issues.
ONE (Issue): I have clearly set brain[1] to "Bye|Goodbye" but when I print "thing" (thing is the String that goes through all the string in the array.) it only shows up in the first one.
TWO (How can I...): How can I make it so after I type something then I will be asked for input again?
THREE (How can I...): My learning AI works, but there a better system I can think of like a text file with responses.

Feel free to post anything that could help me in the slightest.

[Norm]

Please post the output from the program that shows what it does when executed.

[rokit boy]

Well when I type in Hello, it responses hi, as it should be.
When I input Goodbye, my string-in-array-finder doesn't find it, though it clearly says brain[1] = "Bye|Goodbye"; in the main code, so if the AI can't find the string it goes to the else bit.

Also, how can I do it so it asks me for input again.

[Norm]

Please post the console's contents from when you execute your program that shows what it prints out.