Misplaced bracket error in code

[Gina777416]

I cannot figure out why my main is not identifying my classes, is there a bracket misplaced or something? Here are the errors I am getting

C:\Documents and Settings\Regina Denson\My Documents\JCreator LE\MyProjects\Inventory6.java:37: cannot find symbol
symbol  : class GUI
location: class Inventory6
        GUI gui = new GUI(inventory); // Start the GUI
        ^
C:\Documents and Settings\Regina Denson\My Documents\JCreator LE\MyProjects\Inventory6.java:37: cannot find symbol
symbol  : class GUI
location: class Inventory6
        GUI gui = new GUI(inventory); // Start the GUI
                      ^
C:\Documents and Settings\Regina Denson\My Documents\JCreator LE\MyProjects\Inventory6.java:39: cannot find symbol
symbol  : class OutputDVD
location: class Inventory6
        OutputDVD output = new OutputDVD(inventory);
        ^
C:\Documents and Settings\Regina Denson\My Documents\JCreator LE\MyProjects\Inventory6.java:39: cannot find symbol
symbol  : class OutputDVD
location: class Inventory6
        OutputDVD output = new OutputDVD(inventory);
                               ^

And Here is my code

import java.util.*; // using java libraries
 
public class Inventory6 {
 
    public static void main(String[] args) 
        {
 
        FeatDVD dvd;
        Inventory inventory = new Inventory();
 
        dvd = new FeatDVD(0, "Hitch", 5, 12.99, "Columbia Pictures");
        inventory.add(dvd);
 
        dvd = new FeatDVD(1, "Unleashed", 7, 14.99, "Universal Studios");
        inventory.add(dvd);
 
        dvd = new FeatDVD(2, "Batman Forever", 6, 13.99, "Warner Bros");
        inventory.add(dvd);
 
        dvd = new FeatDVD(3, "Taxi", 3, 15.99, "20TH Century Fox");
        inventory.add(dvd);
 
        dvd = new FeatDVD(4, "Free Willy", 8, 11.99, "Warner Bros");
        inventory.add(dvd);
 
        dvd = new FeatDVD(5, "Cliffhanger", 2, 12.99, "Columbia Tristar");
        inventory.add(dvd);        
 
        dvd = new FeatDVD(6, "A Christmas Story", 7, 15.99, "Warner Bros");
        inventory.add(dvd);
 
        dvd = new FeatDVD(7, "Stir of Echos", 7, 11.99, "Artisan");
        inventory.add(dvd);
 
        inventory.display();
        GUI gui = new GUI(inventory); // Start the GUI
 
        OutputDVD output = new OutputDVD(inventory);
 
        } // end main
 
} // end class Inventory6
 
 
 
/**** Class decribes DVD while demostrating polymorphism and inheritance**/
 
class DVD implements Comparable
{
    private int dvditem;
    private String dvdtitle; 
    private int dvdstock;
    private double dvdprice;
 
    // Constructor  
    DVD() 
    {
       dvditem  = 0;
       dvdtitle = "";
       dvdstock = 0;
       dvdprice = 0;
    }// end constructor
 
    //constructor initializes variables
    DVD(int item, String title, int stock, double price)
    {
       this.dvditem  = item;
       this.dvdtitle = title;
       this.dvdstock = stock;
       this.dvdprice = price; 
    } 
 
    private void setTitle( String title )
    {
        this.dvdtitle = title;
    } 
 
    public String getdvdTitle() 
    {
        return dvdtitle;
    } 
 
    private void setdvdItem( int item ) 
    {
        this.dvditem = item;
    } 
 
    public int getdvdItem() 
    {
        return dvditem;
    } 
 
    private void setdvdStock( int stock ) 
    {
        this.dvdstock = stock;
    } 
 
    public int getdvdStock() 
    {
        return dvdstock;
    } 
 
    private void setdvdPrice (double price ) 
    {
        this.dvdprice = price;
    } 
 
    public double getdvdPrice()
    {
        return dvdprice;
    } 
 
    public double getValue() 
    {
        double value = dvdstock * dvdprice; 
        return value;
    } 
 
    // This method tells the sort method what is to be sorted
    public int compareTo(Object o)
    {
        return dvdtitle.compareTo(((DVD) o).getdvdTitle());
    }
 
    // This method passes the format for the string
    public String toString() 
    {
        return String.format("Unit number:%d %12s  Units:%2d  Price: $%5.2f  Movie value: $%6.2f",
            dvditem, dvdtitle, dvdstock, dvdprice, getValue());
    }
} // end class DVD  
 
 
/**** This is a subclass that adds 5% restocking fee and new feature genres***/
 
class FeatDVD extends DVD
{
     private String genres;
 
     // class constructor        
     FeatDVD(int item, String title, int stock, double price, String genres)
     {
          super(item, title, stock, price);
          this.genres = genres;
     }
     public String getGenres()
     {
          return genres;
     }
 
     public double getValue()
     {// getvalue method overrides
      // getvalue method in the superclass
          double value = 1.05F * super.getValue();
          return value;
     }// end getValue method
 
     public String toString()
     {//toString method overrides the superclass toString method
      //adding another fields
         return super.toString() + "Genre:" + genres;    
     }// end toString method
 
} // end class FeatDVD
 
 
/*****class has inventory of DVDs.
* This class has methods to add and display dvds****/
 
class Inventory
{
    private DVD[] dvds;     
    private int nCount;
 
    // constructor
    Inventory()
    {
       dvds = new DVD[8];
       nCount = 0;
    }
 
 
    public int getNcount()
    {
        return nCount;
    }
 
    // method adds DVD to inventory
    public void add(DVD dvd)
    {
       dvds[nCount] = dvd;
       ++nCount;
       sort();
    }
 
    public void delete(int n)
    {
       if (nCount > 0)
       {
          dvds[n] = dvds[nCount-1];
          --nCount;
          sort();
       }
    }
    public int search(String seek)
    {
 
       int n = -1;
       for (int i = 0; i < nCount; i++) {
           if (seek.equalsIgnoreCase(dvds[i].getdvdTitle())) {
               n = i;
               break;
 
    }
       }
       return n;
    }
 
    public FeatDVD getFeatDVD(int n)
    {
       return (FeatDVD) dvds[n];
    }
    // method calculates total value of inventory
    public double getTotalValue()
    {
 
       double totalValue = 0;
       for (int i = 0; i < nCount; i++)
            totalValue = dvds[i].getValue();
       return totalValue;
    } // end getTotalValue
 
    public DVD getDVD(int n) //use in GUI
    {// protects n and keep in range
       if (n<0)
           n = 0;
       else if (n >= nCount)
           n = nCount - 1;
       return (n >= 0) ? dvds[n] : null;
     }
 
 
    // sorts the DVDs
    private void sort()
    {
 
       if (nCount > 0)
          Arrays.sort(dvds, 0, nCount);
    }// end sort method
 
    public void display()
    {
       for (int i = 0; i < nCount; i++)
          System.out.printf("%2d:  %s\n", i, getFeatDVD(i));
    }
 
 
} // end class Inventory
 
Please HELP

[Creature]

Hi, Gina!

I do not see where you declare the class GUI. If it is in a different package, you will need to import it before using it.

import packagename.GUI;

kind of like you're importing the java.util package contents.

[samido]

dude, make sure the class GUI is compiled successfully, this is why you getting this problem, chaww...

[Gina777416]

Hi, Gina!

I do not see where you declare the class GUI. If it is in a different package, you will need to import it before using it.

import packagename.GUI;

kind of like you're importing the java.util package contents.

Thanks so much!! So I add that import line under the first import line?

[Gina777416]

Hi, Gina!

I do not see where you declare the class GUI. If it is in a different package, you will need to import it before using it.

import packagename.GUI;

kind of like you're importing the java.util package contents.

Well now I get these errors
C:\Program Files\Java\jdk1.6.0_03\bin\Inventory6.java:3: package packagename does not exist
import packagename.GUI;
^
C:\Program Files\Java\jdk1.6.0_03\bin\Inventory6.java:38: cannot find symbol
symbol : class GUI
location: class Inventory6
GUI gui = new GUI(inventory); // Start the GUI
^
C:\Program Files\Java\jdk1.6.0_03\bin\Inventory6.java:38: cannot find symbol
symbol : class GUI
location: class Inventory6
GUI gui = new GUI(inventory); // Start the GUI
^
C:\Program Files\Java\jdk1.6.0_03\bin\Inventory6.java:40: cannot find symbol
symbol : class OutputDVD
location: class Inventory6
OutputDVD output = new OutputDVD(inventory);
^
C:\Program Files\Java\jdk1.6.0_03\bin\Inventory6.java:40: cannot find symbol
symbol : class OutputDVD
location: class Inventory6
OutputDVD output = new OutputDVD(inventory);
^

HMMMMM brain pain

[Gina777416]

dude, make sure the class GUI is compiled successfully, this is why you getting this problem, chaww...

I am still learning and I don't know how but thanks so much for your reply!!

[Gina777416]

Hi, Gina!

I do not see where you declare the class GUI. If it is in a different package, you will need to import it before using it.

import packagename.GUI;

kind of like you're importing the java.util package contents.

So I tried it a little different and I only get one error
C:\Program Files\Java\jdk1.6.0_03\bin\Inventory6.java:38: cannot find symbol
symbol : constructor Inventory(Inventory)
location: class Inventory
Inventory output = new Inventory(inventory);
^

Here is te code

import java.util.*; // using java libraries


public class Inventory6 {

public static void main(String[] args)
{

FeatDVD dvd;
Inventory inventory = new Inventory();

dvd = new FeatDVD(0, "Bad Boys", 5, 12.99, "Comedy");
inventory.add(dvd);

dvd = new FeatDVD(1, "Color Purple", 7, 14.99, "Drama");
inventory.add(dvd);

dvd = new FeatDVD(2, "Madea Family Reunion", 6, 13.99, "Drama");
inventory.add(dvd);

dvd = new FeatDVD(3, "Diary of a Mad Black Woman", 3, 15.99, "Drama");
inventory.add(dvd);

dvd = new FeatDVD(4, "Forest Gump", 8, 11.99, "Comedy");
inventory.add(dvd);

dvd = new FeatDVD(5, "How Stella Got Her Groove Back", 2, 12.99, "Drama");
inventory.add(dvd);

dvd = new FeatDVD(6, "What's love Got to do With it", 7, 15.99, "Drama");
inventory.add(dvd);

dvd = new FeatDVD(7, "Purple Rain", 7, 11.99, "Drama");
inventory.add(dvd);


Inventory output = new Inventory(inventory);

} // end main

} // end class Inventory6



/**** Class decribes DVD while demostrating polymorphism and inheritance**/

class DVD implements Comparable
{
private int dvditem;
private String dvdtitle;
private int dvdstock;
private double dvdprice;

// Constructor
DVD()
{
dvditem = 0;
dvdtitle = "";
dvdstock = 0;
dvdprice = 0;
}// end constructor

//constructor initializes variables
DVD(int item, String title, int stock, double price)
{
this.dvditem = item;
this.dvdtitle = title;
this.dvdstock = stock;
this.dvdprice = price;
}

private void setTitle( String title )
{
this.dvdtitle = title;
}

public String getdvdTitle()
{
return dvdtitle;
}

private void setdvdItem( int item )
{
this.dvditem = item;
}

public int getdvdItem()
{
return dvditem;
}

private void setdvdStock( int stock )
{
this.dvdstock = stock;
}

public int getdvdStock()
{
return dvdstock;
}

private void setdvdPrice (double price )
{
this.dvdprice = price;
}

public double getdvdPrice()
{
return dvdprice;
}

public double getValue()
{
double value = dvdstock * dvdprice;
return value;
}

// This method tells the sort method what is to be sorted
public int compareTo(Object o)
{
return dvdtitle.compareTo(((DVD) o).getdvdTitle());
}

// This method passes the format for the string
public String toString()
{
return String.format("Unit number:%d %12s Units:%2d Price: $%5.2f Movie value: $%6.2f",
dvditem, dvdtitle, dvdstock, dvdprice, getValue());
}
} // end class DVD


/**** This is a subclass that adds 5% restocking fee and new feature genres***/

class FeatDVD extends DVD
{
private String genres;

// class constructor
FeatDVD(int item, String title, int stock, double price, String genres)
{
super(item, title, stock, price);
this.genres = genres;
}
public String getGenres()
{
return genres;
}

public double getValue()
{// getvalue method overrides
// getvalue method in the superclass
double value = 1.05F * super.getValue();
return value;
}// end getValue method

public String toString()
{//toString method overrides the superclass toString method
//adding another fields
return super.toString() + "Genre:" + genres;
}// end toString method

} // end class FeatDVD


/*****class has inventory of DVDs.
* This class has methods to add and display dvds****/

class Inventory
{
private DVD[] dvds;
private int nCount;

// constructor
Inventory()
{
dvds = new DVD[8];
nCount = 0;
}


public int getNcount()
{
return nCount;
}

// method adds DVD to inventory
public void add(DVD dvd)
{
dvds[nCount] = dvd;
++nCount;
sort();
}

public void delete(int n)
{
if (nCount > 0)
{
dvds[n] = dvds[nCount-1];
--nCount;
sort();
}
}
public int search(String seek)
{

int n = -1;
for (int i = 0; i < nCount; i++) {
if (seek.equalsIgnoreCase(dvds[i].getdvdTitle())) {
n = i;
break;

}
}
return n;
}

public FeatDVD getFeatDVD(int n)
{
return (FeatDVD) dvds[n];
}
// method calculates total value of inventory
public double getTotalValue()
{

double totalValue = 0;
for (int i = 0; i < nCount; i++)
totalValue = dvds[i].getValue();
return totalValue;
} // end getTotalValue

public DVD getDVD(int n) //use in GUI
{// protects n and keep in range
if (n<0)
n = 0;
else if (n >= nCount)
n = nCount - 1;
return (n >= 0) ? dvds[n] : null;
}


// sorts the DVDs
private void sort()
{

if (nCount > 0)
Arrays.sort(dvds, 0, nCount);
}// end sort method

public void display()
{
for (int i = 0; i < nCount; i++)
System.out.printf("%2d: %s\n", i, getFeatDVD(i));
}


} // end class Inventory

[Laharl]

The compiler is complaining because you have no constructor written for the Inventory class that takes an Inventory parameter, which I would assume is a copy constructor, which would assign the member values of the input Inventory to the newly constructed Inventory object.

Eg:

public class Foo {
 private int a;
 public Foo(Foo other){//Takes a parameter of a Foo object
  a = other.a; //Assigns a to the input object's a value
 }
  ...
}
 

[Gina777416]

The compiler is complaining because you have no constructor written for the Inventory class that takes an Inventory parameter, which I would assume is a copy constructor, which would assign the member values of the input Inventory to the newly constructed Inventory object.

Eg:

public class Foo {
 private int a;
 public Foo(Foo other){//Takes a parameter of a Foo object
  a = other.a; //Assigns a to the input object's a value
 }
  ...
}
 

I am so new at this I guess I just don't understand the whole "Foo" thing. But thank you so much for your reply

[Laharl]

The Foo class was an example to give you an idea of what this needs to look like. The type of constructor I mentioned is called a "copy constructor" because it makes the new object a copy of the old one.