CSC305 Lecture 08

Individual Software Design and Development
Connecting the Dots
(202410)

Transcript

1. Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.info o ffi ce: 14 -227 CSC 305 Individual Software Design and Development Lecture 08. Listeners
2. Previously
3. JPanel 3
8. Listeners
9. Release 1. GUI 9
11. Release 2. Action Listeners 11
13. Release 3. Draw Area 13
16. Release 4. Mouse Listeners 16
18. MouseListener • public void mousePressed (MouseEvent e) {} • public void mouseClicked(MouseEvent e) { } • public void mouseRele a sed(MouseEvent e) { } • public void mouseEntered(MouseEvent e) { } • public void mouseExited(MouseEvent e) { } • public void mouseDr a gged(MouseEvent me) { } • public void mouseMoved(MouseEvent e) { } 18
19. MouseMotionListener • public void mouseDr a gged(MouseEvent me) { } • public void mouseMoved(MouseEvent e) { } 19
20. Release 5. Draw + Mouse 20
22. Listeners 22 • ActionListener • actionPerformance(ActionEvent e) {} • addActionListener (this);
23. One Last Thing
24. How to show a Dialog Box? 24
25. How to show a Dialog Box? 25 JOptionPane.showMessageDialog (this, "Hello, I am a dialog box!");
26. Questions 26
27. Lab.
28. Let’s work Cre a te this GUI using J a v a : 1. Blue b a r a t the top with your n a me. 2. A grid a t the center. Use MouseListener to a llow the user to click on a squ a re a nd ch a nge the color to yellow 3. The f ive buttons on the bottom. Only “Cle a r" need to work. Ignore the others. 4. The gr a y-box over the grid with the sliders c a n be ignored. Do not a dd it a t this moment. 28
29. Let’s work 29
30. CSC 305 Individual Software Design and Development Javier Gonzalez-Sanchez, Ph.D. javiergs@calpoly.edu Summer 2024 Copyright. These slides can only be used as study material for the class CSC305 at Cal Poly. They cannot be distributed or used for another purpose.