Linking 2 classes together

Question

This is always what i find hardest to do in java for some reason. Basically i have some code which is part of the class database, and this class adds records to my database as seen below;
class Database
     public Database(){
     int answer = JOptionPane.YES_OPTION;
     int count = 0;
     final int ARRAY_SIZE = 12;
     CD[] data = new CD[ARRAY_SIZE];
     while (answer == JOptionPane.YES_OPTION)
     String a;
     String c;
     int n;
     a = JOptionPane.showInputDialog("Please, enter artist name");
     c = JOptionPane.showInputDialog("Please, enter CD name");
     n = Integer.parseInt(JOptionPane.showInputDialog("Please enter total number of tracks"));
     data[count] = new CD(a, c, n);
     answer = JOptionPane.showConfirmDialog(null, "Enter another record?",
                     "???", JOptionPane.YES_NO_OPTION);
     count++;
     System.exit(0);
}Next i have a new class called search which is supposed to search for a CD typed in by the user. This is the code i have;
class Search
int result;
String searchKey = JOptionPane.showInputDialog("Give me the name of a CD");
result = linearSearch(data, searchKey, ARRAY_SIZE);
     if(result== -1)
     JOptionPane.showMessageDialog(null,"KEY " + searchKey + " NOT FOUND");
     else
     JOptionPane.showMessageDialog(null,"KEY " + searchKey + " FOUND in position " + result);
     System.exit(0);
public static int linearSearch(String[] data, String key, int sizeOfArray)
for (int counter = 0; counter < sizeOfArray; counter++)
if (data[counter].equalsIgnoreCase (key))
return counter;
return -1;
}How do i get the information from the database into my search class, because at the moment my search class wont compile due to identifiers being expected, most problably for the variables data and ARRAY_SIZE. Also, i am not sure if this makes a difference but the information i need from the database class is only the CD name and not the whole array object. If i am unclear, just let me know.
Cheers

Answer 1

above these 2 classes, i have a constructor and method which states my array object;
class CD
     String artistName, CDname;
     int noOfTracks;
     public String records;     
     public CD (String ar, String cd, int no){
     //data that is passed is stored in variables below
     artistName=ar;
     CDname= cd;
     noOfTracks=no;
     String printData(){
     //processed data stored in variable record      
     records =artistName  + "    "+ CDname + "     " + noOfTracks ;
     //value of record returned
     return records;
}Can i use this constructor and class to create a new method which will search the array, or do i have to create constructors for my other classes, and if so is it the database class or the search class i need these methods and constructors?