una instrucción if deja en blanco la salida

I am trying to show a list of symbolized items and letting the user choose one to be deleted.

1. I write the info to a txt file.
2. I store the contents of the file in an array.
3. I print out the array.
4. The user inputs (L101 for example) and it will get deleted from the file.

The problem is in step (1) I want the file to be written, if and only if the file didn't exist. so I precede the while loop which will write to the file with

if(file.isFile() ==false).

This however seems to blank the output, as if the reader isn't able to read the file and store it in the array. why? P.S if I don't put an if and else statements the output is ok, it's just that it writes the file again, which I don't want to happen, I want ti to show everything except what the user typed.

Aqui esta el codigo

public static void main (String args[]) throws IOException
{
    //Declaring the file
     File tempFile = new File("D:\\myTempFile.txt");
    //Declaring the writer
     BufferedWriter writer = new BufferedWriter(new FileWriter(tempFile));
    int n=0;
    int L=1;
    //Writing to the file if it did not exist
    if(tempFile.isFile()==false) 
    {

    while(n<15 && L<3)
        {
        n++;
        writer.write("L"+L+"0"+n);
        writer.newLine();
        L++;
        writer.write("L"+L+"0"+n);
        writer.newLine();
        L++;
        writer.write("L"+L+"0"+n);
        writer.newLine();
        L=1;
        //}

    }
     writer.close(); 
     freeParkingSpaces();
    }
    //read the and store to array if the file exists
    else if(tempFile.isFile()==true)
    {
        freeParkingSpaces();
    }

}                

public static void freeParkingSpaces() throws IOException
   {
     File tempFile = new File("D:\\myTempFile.txt");
   //using try and catch to handle errors and print propriet message instead. 
    try{ 
        Scanner readSpaces; // declare scanner variable.
//reading from file that contains the available spaces and storing them into an array.
System.out.println("Please choose one of the following parking spaces: ");
System.out.println(" ");
String [] freeSpaces= new String[45]; // declaring the array.
int i=0;

//getting input from file that contains the available spaces and storing them into an    array.
readSpaces=new Scanner(new File("D://myTempFile.txt")); 
System.out.print("\t\t");

//Display the values of the array which are the available spaces.
while(i<15 && readSpaces.hasNext()){
freeSpaces[i]=readSpaces.nextLine();
System.out.print("   "+freeSpaces[i]);
i++;
}
System.out.println(" ");
System.out.print("\t\t");
while(i>=15&&i<30&&readSpaces.hasNext()){
freeSpaces[i]=readSpaces.nextLine();
System.out.print("   "+freeSpaces[i]);
i++;
}
System.out.println(" ");
System.out.print("\t\t");
while(i>=30&&i<45&&readSpaces.hasNext()){
freeSpaces[i]=readSpaces.nextLine();

System.out.print("   "+freeSpaces[i]);
i++;
}
System.out.println(" ");
readSpaces.close();

//create scanner object to hold the input of a user which is a park space.
Scanner holder5=new Scanner(System.in); 
System.out.print("Your choice:  ");
String spaceName=holder5.nextLine();

//declaring files

File inputFile=new File("D://Temporary.txt");

// creating object to read from Free_ParkingSpaces file
BufferedReader reader=new BufferedReader(new FileReader(tempFile));
// creating object to write to the tempFile
BufferedWriter writer0=new BufferedWriter(new FileWriter(inputFile));
String currentLine;

while((currentLine = reader.readLine()) != null){
String trimmedLine = currentLine.trim();  
if(trimmedLine.equals(spaceName)) continue;//leave the required space by the user.
writer0.write(currentLine);   //write the lines to the tempFile.
writer0.newLine();   // start from new line.
}

writer0.close(); //close BufferedWriter Object

reader.close(); //close BufferedReader Object
tempFile.delete();  // Delete the old available spaces file.
inputFile.renameTo(tempFile); // Naming the temp file myTempFile.

System.out.println("Registration has completed successfuly");}


                                    catch(Exception e){
                        System.out.println("\n\t\t\t\tSorry, there's something     wrong try again!");}
                   }
}