import javax.swing.JOptionPane;import java.lang.Integer;import java.lang.Double;public class BrukVolum { public static void main(String[] args) { // Variable declarations. String lengthInput; String widthInput; String heightInput; int length = 0; int width = 0; int height = 0; int PackageNumber = 1; int PackageChosen = 0; Object[] PackageOptions = {"Cylindrical", "Rectangular"}; Object[] ProgramOptions = {"New Package", "Show Results"}; do { // Will the package details be for a cylindrical or rectangular package? int PackageChoice = JOptionPane.showOptionDialog(null, "Choose your package type", "Choose package type", JOptionPane.DEFAULT_OPTION, JOptionPane.QUESTION_MESSAGE,null, PackageOptions, PackageOptions[0]); if (PackageChoice == 0) { // Just let the user know what type of package he chose .. System.out.println("Cylindrical package type chosen."); // Keep track of which package we're reading values for PackageNumber = PackageNumber + 1; // Let the user input values for package number <X> lengthInput = JOptionPane.showInputDialog("Cylindrical Package #"+PackageNumber+".\nLength: "); widthInput = JOptionPane.showInputDialog("Cylindrical Package #"+PackageNumber+".\nWidth: "); heightInput = JOptionPane.showInputDialog("Cylindrical Package #"+PackageNumber+".\nHeight: "); length = Integer.parseInt(lengthInput); width = Integer.parseInt(widthInput); height = Integer.parseInt(heightInput); // Allow the user to choose how to continue int ProgramChoice = JOptionPane.showOptionDialog(null, "How do you want to continue?", "How do you want to continue?", JOptionPane.DEFAULT_OPTION, JOptionPane.QUESTION_MESSAGE,null, ProgramOptions, ProgramOptions[0]); } else if (PackageChoice == 1) { System.out.println("Rectangular package type chosen."); } } while (ProgramChoice == 0); } // END METHOD 'main'} // END CLASS 'BrukVolum'