Assignment #6

Due: Fri, Nov 15

Objective

This assignment will help you gain practice with basic Swing components and basic event handling.

Task

This is an exercise from the textbook:

Write an application that plays "guess the number" as follows: Your application chooses the number to be guessed by selecting an integer at random in the range 1-1000. The application then displays the following in a label:
```
     I have a number between 1 and 1000. Can you guess my number?
     Please enter your first guess.
```
A JTextField should be used to input the guess. As each guess is input, the background color should change to either red or blue. Red indicates that the user is getting "warmer", and blue indicates that the user is getting "colder". A JLabel should display either "Too High" or "Too Low" to help the user zero in on the correct answer. When the user gets the correct answer, "Correct!" should be displayed, and the JTextField used for input should be changed to uneditable. A JButton should be provided to allow the user to play the game again. When the JButton is clicked, a new random number should be generated and the input JTextField changed to be editable.

Requirements and Notes

Filename: Guess.java

Follow all instructions in the exercise
Note that input of guesses must be done in the JTextField, and event handling must be used. You may NOT use JOptionPane dialog boxes to get the input
embed the components in a JPanel, placed on a JFrame (as the outer container)
"warmer" means you are closer to the answer than the last guess was. "colder" means you are farther from the answer than the last guess.
- Since there was no "last guess" on the first try by the user, the background color setting should not change yet. Only on the second try is there a "last guess" to compare with. Leave it as white (neutral) after the first guess
When you change the background color (as specified in the exercise), this means the background of the whole frame (not just the text component, for instance).
If the current guess is not any closer or any farther from the last guess, change the background back to white (this detail was not specified in the exercise, so I'm adding this interpretation to clarify all possibilities).
Any member data (static and instance variables) of classes you write should be private
Make sure your code is appropriately documented and easy to read

Submitting:

Pack up your source code files AND your compiled .class files into a single jar-file called "hw6.jar". Make this a runnable jar file, so that the program can be run with the command (or just double-clicked on a windows machine with the Java Runtime Environment installed):

 java -jar hw6.jar

As usual, use the Canvas HW 6 submission link to submit your jar file