![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
![JOptionPane. Import javax.swing.JOptionPane Use showInputDialog() for input. Only string values can be input. To convert an input value from a string. - ppt download JOptionPane. Import javax.swing.JOptionPane Use showInputDialog() for input. Only string values can be input. To convert an input value from a string. - ppt download](https://images.slideplayer.com/32/9978239/slides/slide_4.jpg)
JOptionPane. Import javax.swing.JOptionPane Use showInputDialog() for input. Only string values can be input. To convert an input value from a string. - 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)