import java.util.Scanner;
//=================================================================================================
public class ArrayIrreg2 {
//-------------------------------------------------------------------------------------------------
    private static final Scanner keyboard = new Scanner(System.in);
    private static final int STORES = 3;
//-------------------------------------------------------------------------------------------------
    public static void main(String[] args) {

        double[][] storeData;
        int store,size,item;

        storeData = new double[STORES][];
        for (store = 0; store < storeData.length; store++) {
            System.out.print("How many items in store " + store + " : ");
            size = keyboard.nextInt();
            if (size == 0) {
                storeData[store] = null;
            } else {
                storeData[store] = new double[size];
//----Add data for items in store
                for (item = 0; item < storeData[store].length; item++) {
                    System.out.print("Enter data for store " + store + ", item number " + item + 
" : ");
                    storeData[store][item] = keyboard.nextDouble();
                }
            }
        }

        System.out.print("Which store shall I recall : ");
        store = keyboard.nextInt();
        while (store >= 0 && store < storeData.length) {
            if (storeData[store] == null) {
                System.out.println("No data in that store");
            } else {
                for (item = 0; item < storeData[store].length; item++) {
                    System.out.print(storeData[store][item] + " ");
                }
                System.out.println();
            }
            System.out.print("Which store shall I recall : ");
            store = keyboard.nextInt();
        }
    }
//-------------------------------------------------------------------------------------------------
}
//=================================================================================================