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![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 "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
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![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
JOptionPane help needed - Java - Codecademy Forums
