Question

I have created a method to print my files, however it only passes the true value instead of my actual values from the .dat file. Will you take a look at my method and tell what i’m doing wrong, please? Thank you so much.

calls the printing method:

System.out.println(printColumnHeaders(vehicles[x], false, false));

My Printing method:

private  static  boolean  printColumnHeaders(Vehicle vehicle,boolean isFirst,boolean printFull ) {

    if(isFirst && printFull) {
         System.out.println(vehicle.printFullHeadings());
         isFirst = true;
         printFull = true;
     }
     else  if(isFirst){
         System.out.println(vehicle.printSummaryHeadings());
         isFirst = true;
     }
    return false; 
    }

this method suppose to check If isFirst boolean value is true and printFull boolean value is true
then, Call the vehicle’s printFullHeadings method
next, Else if isFirst boolean value is true
last, Call the vehicle’s printSummaryHeadings method

Answer 1

here is how I fixed it:

private static void displayVehicleData(String displayType) {
    boolean isFirst = true;

    for(int x = 0; x < vehicles.length; x++){

        switch(displayType) {

            case "Vehicles" : // List All Vehicles
                isFirst = printColumnHeaders(vehicles[x], false, isFirst);
                    System.out.println(vehicles[x].printSummaryOutput());

                break;
            case "Cars": // List All Cars
                    if(vehicles[x].getVehicleType().equals("American Car") || 
                        vehicles[x].getVehicleType().equals("Foreign Car")) {
                        isFirst = printColumnHeaders(vehicles[x], false, isFirst);
                        System.out.println(vehicles[x].printSummaryOutput());
                    }

Printing method:

private  static  boolean  printColumnHeaders(Vehicle vehicle, boolean printFull, boolean isFirst) {

                if(isFirst && printFull){
                    System.out.println(vehicle.printFullHeadings());
                }                                       
                else if (isFirst){
                    System.out.println(vehicle.printSummaryHeadings());
                }

            return false;
        }