Compsci 108, Spring 2005, Jotto
We want to get to the picture on the left, though
the buttons to indicate letters in/out aren't necessarily
part of the UI.
We are starting with code that displays the GUI on the right. There
is one box for entering text (there should be more) and the UI for
selecting letters that are in/out is different.
In class we talked about the UIs and what would be better, e.g., the
button panel at the bottom on the left, or a spinner-like field such as
the one on the right. See below the screen-shots for more details.
| Goal?
| Starting
|
|
|
You should also allow the user to select the degree of difficulty of the
game, e.g., how many guesses before the game is over (easy, medium,
hard, for example).
In Class, March 23
As a start toward creating the buttons on the bottom-left above, we
wrote the code below in class. It was meant to illustrate anonymous
inner-classes, processing events, and the GridLayout class.
<![CDATA[
public static class KeyboardPanel extends JPanel{
public KeyboardPanel(){
this.setLayout(new GridLayout(6,5));
for(char i = 'A'; i <= 'Z'; i++){
final JButton b = new JButton(""+i);
b.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
Color c = b.getForeground();
if (c == Color.GRAY){
//b.setBackground(Color.RED);
b.setForeground(Color.RED);
}
else {
// b.setBackground(Color.GRAY);
b.setForeground(Color.GRAY);
}
}
});
this.add(b);
}
}
}
]]>
Using this code, and the Jotto assignment you can check out from Eclipse
(or access source here) you are to work by yourself
toward creating a working Jotto program similar whose UI is like the one
on the left above. It should have several levels (number of incorrect
guesses before losing), should have a UI for helping the player manage
letters --- this is in, this is out, etc.
For extra credit, write a new program (model and view) based on these
so that the computer guesses the user's word. The user would enter the
number of correct letters, the computer would guess words. There are
several UI issues here, the model is pretty simple: the computer
guesses, at random, a word that could be the correct one. Based on
the user's response (e.g., 2 letters in common) the computer
removes all words that could not be the secret user word
from it's temporary dictionary, then repeats. This is pretty
simple to code, and will beat humans nearly every time.
Owen L. Astrachan
Last modified: Wed Mar 23 21:23:41 EST 2005