One Class Calling Another Class ......Need Help..ugh

Question

this is the class that calls another class called cuboid
package WindowsApplication1;
* Summary description for Cuboid.
//Import the classes to allow the use of the array, iterator and listiterator
import java.util.ArrayList;
import java.util.Iterator;
import java.util.ListIterator;
public class DisplayCuboidValues
     public static void main(String args[])
          //Create the array list
          ArrayList VolumeList = new ArrayList();
          //Create the counter to loop 4 times and get 4 different volumes. Modify the counter
          //if you need a different values
          int Counter = 1;
          //Initialize the counter to loop 4 times in order to get the 4 objects
          while (Counter < 5)
               Cuboid mp = new Cuboid(2, 4, 3);
               //Add the values to the array
               VolumeList.add(mp);
               // get the volume again via accessor method(Optional)
               //int Volume = mp.Volume();
               //System.out.println(Volume);
               //Increment the counter to obtain a new value in the array
               Counter = Counter + 1;
          // Retrieve iterator to the radiuslist
          Iterator itr1 = VolumeList.iterator();
          while (itr1.hasNext())
          // call Cuboid.toString()
          System.out.print(itr1.next());
          System.out.println();
}this is the cuboid class
package WindowsApplication1;
* Summary description for Cuboid.
public class Cuboid
     private final int length, width, height;
     //1st contructor with 3 arguments
     public Cuboid(int length, int width, int height)
          this.length = length;
          this.width = width;
          this.height = height;
     //2nd constructor with no arguments
//I BELIEVE THIS PUBLIC CUBOID IS THE ONE THE PROVOKES THE ERROR. BUT I CAN NOT DELETE IT BECAUSE I NEED ANOTHER PUBLIC CUBOID. SO IDK WHAT TO DO......
     public Cuboid()
          this.length = length;
          this.width = width;
          this.height = height;
        public String toString() {
               return "This cuboid has length x, width y, height z, and has volume of v where X=" + length + " " + "Y=" + width + " " + "Z=" + height + " " + "Volume=" + length * width * height + ".   --   ";
     //Method to calculate the Volume
     public int Volume()
          return length * width * height;
     }This is what i have done. I have created a project named ths(which i do not use it at all). Then, i created one file called DisplayCuboidValues under ths. Then i created the file Cuboid under ths too. But it gives me errors. like this one:
init:
deps-jar:
Created dir: C:\Documents and Settings\Owner\ths\build\classes
Compiling 1 source file to C:\Documents and Settings\Owner\ths\build\classes
C:\Documents and Settings\Owner\ths\src\DisplayCuboidValues\Cuboid.java:25: variable length might not have been initialized
this.length = length;
*^*
C:\Documents and Settings\Owner\ths\src\DisplayCuboidValues\Cuboid.java:26: variable width might not have been initialized
this.width = width;
*^*
C:\Documents and Settings\Owner\ths\src\DisplayCuboidValues\Cuboid.java:27: variable height might not have been initialized
this.height = height;
*^*
Note: C:\Documents and Settings\Owner\ths\src\DisplayCuboidValues\DisplayCuboidValues.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
*3 errors*
BUILD FAILED (total time: 0 seconds)
Any help you can give me will be appreciated. Thanks.

Answer 1

yeah. you are right in that. so that means that i have to get rid of it??. because i will need it. and the values assigned to them is in the first class that calls the second class look:
package WindowsApplication1;
* Summary description for Cuboid.
//Import the classes to allow the use of the array, iterator and listiterator
import java.util.ArrayList;
import java.util.Iterator;
import java.util.ListIterator;
public class DisplayCuboidValues
     public static void main(String args[])
          //Create the array list
          ArrayList VolumeList = new ArrayList();
          //Create the counter to loop 4 times and get 4 different volumes. Modify the counter
          //if you need a different values
          int Counter = 1;
          //Initialize the counter to loop 4 times in order to get the 4 objects
          while (Counter < 5)
*//HERE IS WHERE I AM PROVIDING THE OTHER CLASS WITH VALUES. THEREFORE IT SHOULD SENT THOSE VALUES TO MY CLASS CUBOID AND RETRIEVE THE ANSWER TO FOLLOW THE REST OF THIS CODE.*
               Cuboid mp = new Cuboid(2, 4, 3);
               //Add the values to the array
               VolumeList.add(mp);
               // get the volume again via accessor method(Optional)
               //int Volume = mp.Volume();
               //System.out.println(Volume);
               //Increment the counter to obtain a new value in the array
               Counter = Counter + 1;
          // Retrieve iterator to the radiuslist
          Iterator itr1 = VolumeList.iterator();
          while (itr1.hasNext())
          // call Cuboid.toString()
          System.out.print(itr1.next());
          System.out.println();
}