Can someone please verify if I'm doing this right?

Question

OBJECTIVE:
Write a program that asks a user to enter in one input, either "true" or "false". Simulate the NOT gate in this program. After the user has entered in an input, ask them if they would like to continue or not; continue the program if they reply 'y' and stop if they reply 'n'.
I think this program is pretty easy, but I am not sure if I am doing it right. My understanding of the NOT gate is that if someone enters in something, it must be the opposite. So since the user is only being asked one question, and to only answer "true" or "false", the answer would be opposite to what they input right? Below is the source code of my program for the above objective, please check to see if it is right :).
// The "Chap3Program12" class.
import java.awt.*;
import hsa.Console;
public class Chap3Program12
    static Console c;           // The output console
    public static void main (String [] args)
        c = new Console ();
        String input;
        char response;
        do
            c.println ("Please enter either 'true' or 'false'");
            input = c.readString ();
            c.println ();
            if (!(input.equals ("true")))
                c.println ("You have entered " + input + ".  The result is true.");
            else
                c.println ("You have entered " + input + ".  The result is false.");
            c.println ();
            c.println ("Do you wish to stop y/n?");
            c.println ();
            response = c.readChar ();
        while (response != 'y');
        c.println ();
        c.println ("This program has terminated.  Have a nice day!");
    } // main method
} // Chap3Program12 class

Answer 1

Sorry, I didnt post that properly, let me repost it.
I compiled it and it works, but Im not sure if i am using my NOT gate properly, and if my program is satisfying the Objective.
if (!(input.equals ("true")))           
c.println ("You have entered " + input + ".  The result is true.");           
else           
c.println ("You have entered " + input + ".  The result is false.");           
}If not true = false, then that means my if statement is wrong? My if statement says: If input is NOT equal to true, then the result is true. Shouldn't the result be false then? If not false = true, then that means my statement after else needs to be changed, because if not false = true, the result should be true, not false?