JAVA

/* * Code provided for Lab 3 in CSCI282 * author: C.Anderson * modified on 1-31-2014 */ //package shipping_problem; import java.io.*; import java.util.*; import javax.swing.*; /** * * @author canderson */ public class Fleet2 { private Ship[] shipsOfFleet; private int MARK_LIMIT = 32000; /** * Class constructor */ public Fleet2() { String intro = "This program will initialize a fleet of cargo, cruise\n"+ "and battle ships from the data in the file you will be\n"+ "asked to select. It will than print out a fleet Roster\n"+ "and a record of resources"; JOptionPane.showMessageDialog(null, intro,"Fleet introduction",1); // Create Cargo fleet String fileName = enterFileName("Select fleet ship information file"); boolean status = loadShipsFromFile(fileName); if(status) { // Make display JOptionPane.showMessageDialog(null, "Fleet Roster:\n"+makeFleetRoster()+"\n"+countTheFleet(), "Fleet Roster", 1); JOptionPane.showMessageDialog(null, "Program terminating", "exiting program", 1); } } /** * Will load the ship data from file to shipOfFleet array * to the class array shipsOfFleet * @param fileName */ public boolean loadShipsFromFile(String fileName) { JOptionPane.showMessageDialog(null, "You need to delete line 49-51 in Fleet2 and"+ "\n implement the code needed to read fromfile in. ", "Error",2); return false; /////////////////////////////////////// ///// Type code here to read from file ///// delete lines 50-52 ////////////////////////////////////////// } /** * Will return a file handle for the file selected for the purpose * stated in the argument string * @param purpose * @return */ public static String enterFileName(String purpose) { String fileName = ""; // Creating a new JFilechooser with the argurment that states the directory to start in // This might be a good parameter to pass from the enterFileName method (currently no arguments // instead of hard coding it. JFileChooser chooser = new JFileChooser(""); chooser.setDialogTitle(purpose); int returnVal = chooser.showOpenDialog(null); if(returnVal == JFileChooser.APPROVE_OPTION) // checking to make sure a non-null value was returned // or that you did not just hit cancel { fileName = chooser.getSelectedFile().getAbsolutePath(); // This will return the full // path to the file } else { System.err.print("No file was chosen, program terminating.\nTry again when you are serious about the reports!"); System.exit(0); } return fileName; } /** * Will return a summery of fleet resources * @return */ private String countTheFleet() { String fleetCount =""; int cargoShipCount = 0; int totalFreezerSpace = 0; int totalCargoCapacity =0; int cruiseShipCount = 0; int passengerBerthing = 0; int battleShipCount = 0; int totalWeaponsCapacity =0; int totalFighterCapacity =0; for(int dex = 0; dex < shipsOfFleet.length; dex++) { if(shipsOfFleet[dex] instanceof CargoShip) { cargoShipCount++; totalCargoCapacity += ((CargoShip)shipsOfFleet[dex]).getMaxTonnage(); totalFreezerSpace += ((CargoShip)shipsOfFleet[dex]).getFreezerSpace(); } else if(shipsOfFleet[dex] instanceof CruiseShip) { cruiseShipCount++; passengerBerthing += ((CruiseShip)shipsOfFleet[dex]).getDoubleCabins()*2 + ((CruiseShip)shipsOfFleet[dex]).getStateCabins()*2 + ((CruiseShip)shipsOfFleet[dex]).getEconomyCabins(); } else { battleShipCount++; totalWeaponsCapacity += ((BattleShip)shipsOfFleet[dex]).getWeapons(); totalFighterCapacity += ((BattleShip)shipsOfFleet[dex]).getFighters(); } } fleetCount += "\nCargo Fleet:" + "\nCargo ship count: "+cargoShipCount + "\ntotal cargo capacity: "+totalCargoCapacity + "\ntotal freezer capacity: "+totalFreezerSpace + "\n\nCruise Fleet"+ "\nCruise ship count: "+cruiseShipCount + "\ntotal passenger berthing: "+passengerBerthing + "\n\nBattle Fleet"+ "\nBattle ship count: "+battleShipCount + "\ntotal weapons capacity: "+totalWeaponsCapacity + "\ntotal fighter capacity: "+totalFighterCapacity ; return fleetCount; } /** * Will return a listing of each ship in the fleet along with its capacity * @return */ private String makeFleetRoster() { String fleetRoster =""; for(int dex = 0; dex < shipsOfFleet.length; dex++) { fleetRoster += "\n"+shipsOfFleet[dex].toString(); } return fleetRoster; } public static void main(String[] args) { //required because of file chooser Runnable r = new Runnable() { @Override public void run() { Fleet2 myFleet = new Fleet2(); } }; SwingUtilities.invokeLater(r); } }