Question

So i have a string array full of different vodkas, what i want to do is attach a price to each vodka (string) in the array so that i can display the vodka along with its price on the screen, i also want to use this to filter out higher price or lower price vodkas depending on the users input.
Here is an example array:

    public static final String[] Vodka = {"Absolut Vodka","Finlandia","Ketel One","Polmos Krakow","Skyy","Smirnoff Vodka",
    "Stolichnaya","Fleischmann's","Gilbey's","Wolfschmitt","Five-O-Clock", "Grey Goose",};

Thanks in advance everyone!

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Here is a bit of code i was trying out thank to mike!

if(Price != 0){ 
    for (com.famousmods.what.should.i.drink.VodkaList.Vodka vodka : vl.vodkaList){ 
        // Set vodka brand final 
        TextView text21 = (TextView) findViewById(R.id.display2); 
        test = random.next(vodka.getPrice() <= Price); 
        text21.setText(test); 
    } 
}

The Price is the max amount that the user inputs, it a double, what i was trying to do with that piece of code was randomly get a drink that is less than the price that is inputted. (it was just a shot in the dark really)

Answer 1

Just make a custom class “Vodka” that has 2 fields: name and price. Then make a “VodkaList” class that encapsulates the “Vodka” class and includes an ArrayList<Vodka> This keeps everything well organized.

So, for example:

import java.util.ArrayList;

public class VodkaList {

    public class Vodka {

        String name;
        double price; 

        public Vodka(String name, double price) {
            this.name = name;
            this.price = price;
        }

        public String getName() {
            return this.name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public double getPrice() {
            return this.price;
        }

        public void setPrice(double price) {
            this.price = price;
        }


    }

    public ArrayList<Vodka> vodkaList;

    public VodkaList() {
        this.vodkaList = new ArrayList<Vodka>();

        // here's where you can hard-code the list of Vodkas
        vodkaList.add(new Vodka("Absolut Vodka", 15.75));
        vodkaList.add(new Vodka("Findlandia", 10.25));
        // and repeat until you've hard-coded them all
    }


}

By using a custom class, you can alter the name/price of Vodka at any time, not worry about keeping track of array indices, and easily search the list for the names/prices you want.

Here’s what you’ll put in your main activity to initialize your VodkaList:

VodkaList vl = new VodkaList();

Want to loop through the list and see which Vodkas you put in?

for (Vodka vodka : vl.vodkaList)
    Log.i("Vodka", "Name = " + vodka.name + ", Price = " + vodka.price);

Let’s explore a sample scenario (to address the issue in your problem statement). Let’s say the user enters “10” for the highest price he/she will pay.

for (Vodka vodka : vl.vodkaList) {
    if (vodka.getPrice() < 10)
        ; // the price is good! the user wants it.  show them it
    else
        ; // too expensive for the user.. don't show it
}

This class will make this sort of activity easy!

Tell me if that works. If not, I’ll offer more suggestions.

EDIT:

    Random random = new Random();
    boolean available = false;

    for (Vodka v : vodkaList) {
        if (v.price <= Price)
            available = true;
    }

    TextView text21 = (TextView) findViewById(R.id.display2);

    if (available) {
        // There exists at least one Vodka lower than the user's price
        int randomIndex = -1;
        while (true) {
            randomIndex = random.nextInt(vodkaList.size());
            Vodka v = vodkaList.get(randomIndex);
            if (v.price <= Price) {
                // We have a match!  Display it to the user
                text21.setText(v.name);
                break;
            }
            // If we got here, there's no match.. loop again!

        }
    } else {
        // No vodka exists unders the users price! Can't display anything
    }