![How to use dialog boxes: showMessageDialog and showInputDialog. Java Swing Video Tutorials 1 - YouTube How to use dialog boxes: showMessageDialog and showInputDialog. Java Swing Video Tutorials 1 - YouTube](https://i.ytimg.com/vi/994mwpbZi_s/maxresdefault.jpg)
How to use dialog boxes: showMessageDialog and showInputDialog. Java Swing Video Tutorials 1 - YouTube
![Import javax.swing.JOptionPane; public class Rectangle { public static void main(String[] args) { double width, length, area, perimeter; String lengthStr, - ppt download Import javax.swing.JOptionPane; public class Rectangle { public static void main(String[] args) { double width, length, area, perimeter; String lengthStr, - ppt download](https://images.slideplayer.com/38/10793750/slides/slide_2.jpg)
Import javax.swing.JOptionPane; public class Rectangle { public static void main(String[] args) { double width, length, area, perimeter; String lengthStr, - ppt download
![Import javax.swing.JOptionPane; public class Rectangle { public static void main(String[] args) { double width, length, area, perimeter; String lengthStr, - ppt download Import javax.swing.JOptionPane; public class Rectangle { public static void main(String[] args) { double width, length, area, perimeter; String lengthStr, - ppt download](https://slideplayer.com/10793750/38/images/slide_1.jpg)