COSC4301
Program-7
Due:
11/27/2012
Basic Swing GUI
Design
Objectives:
1.
Design a JFrame class to contain the two JPanels, textPanel and buttonPanel.
2.
Create two JTextAreas, numberArea and wordArea.
3.
Create four JButtons, numberButton, textButton, clearButton and exitButton.
4.
Register this JFrame object as a listener to receive events from above
four buttons.
5.
Define actionPerformed (ActionEvent e) to
handle action events.
Define a
class MyFrame that extends JFrame and implements ActionListener by defining its constructor
that does the
following:
1.
Sets its size to
400-by-300.
2.
Creates two panels
called textPanel and buttonPanel to be added to the JFrame being created using BorderLayout manager.
3.
Creates two JTextAreas called numberArea and
wordArea to contain up to 30 lines of 40 characters
per line.
4.
Add these two JTextAreas to the textPanel using
FlowLayout manager.
5.
Creates four buttons
called numberButton, textButton, clearButton and exitButton and add these buttons to the buttonPanel using FlowLayout
manager.
6.
Register itself as a listener to receive events from these four
buttons.
7.
Define actionPerformed (ActionEvent e)
such that (a) when numberButton is pressed, 150 random
integers (between 0 and 9999) are to be obtained and to be displayed in the
JTextArea numberArea with 6
numbers per line right-justified. (Note that generated random numbers are of
type int and those to be displayed in a textArea are to be of String. So, you need to use a type
conversion method such as Integer.toString() which is
one of static methods of class Integer), (b) when textButton is pressed, 25 words are to be read from a given
input file and displayed in the JTextArea wordArea one word per line. (c) when clearButton is pressed, both
text areas are to be cleared (i.e.,blanked) and (d)
finally when exitButton is pressed, the program will
terminate after printing a farewell message in the text area wordArea.