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MarWo22

Struggeling with GE prices

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I'm using this snippet for getting the prices of items from Osbot

Spoiler

public class GrandExchange {

	private static final String BASE = "https://api.rsbuddy.com/grandExchange?a=guidePrice&i=";

	/**
	 * Default Constructor
	 * 
	 */
	public GrandExchange() {

	}
	
	/**
	 * Gets the overall price of an item.
	 * 
	 * @param itemID
	 * @return itemPrice
	 * @throws IOException
	 */
	public static int getOverallPrice(final int itemID) throws IOException {
		return parse(itemID,"overall");
	}

	
	/**
	 * Gets the buying price of an item.
	 * 
	 * @param itemID
	 * @return itemPrice
	 * @throws IOException
	 */
	public static int getBuyingPrice(final int itemID) throws IOException {
		return parse(itemID,"buying");
	}
	

	public static int getSellingPrice(final int itemID) throws IOException {
		return parse(itemID,"selling");
	}


	/**
	 * Retrieves the price of an item.
	 * 
	 * @param itemID
	 * @return itemPrice
	 * @throws IOException
	 */
	private static int parse(final int itemID, String choice) throws IOException {
		final URL url = new URL(BASE + itemID);
		BufferedReader file = new BufferedReader(new InputStreamReader(url.openStream()));
		String line;
		String price = null;
		while ((line = file.readLine()) != null) {
			if (line.contains("{")) {
				price = (line).trim();
			}
		}
		if (choice.equals("buying")){
			price = price.substring(price.indexOf(",") + 10, nthOccurrence(price, ',', 1)).trim();
		} else if(choice.equals("selling")) {
			price = price.substring(nthOccurrence(price, ',', 2)  + 11 , price.indexOf("sellingQuantity") - 2).trim();
		} else {
			price = price.substring(price.indexOf(":") + 1, price.indexOf(",")).trim();
		}
		file.close();
		return Integer.parseInt(price);
	}

	private static int nthOccurrence(String str, char c, int n) {
		int pos = str.indexOf(c, 0);
		while (n-- > 0 && pos != -1)
			pos = str.indexOf(c, pos + 1);
		return pos;
	}

}

 

Im trying to get the best margin of making the potions. So i came up with this. But because of the IOexception in the snippet it doesnt work. Can someone please help me how to fix this? Im still a beginner at scripting and java.

Spoiler

public enum Potion {
        IRIT(259, 101),
        TOADFLAX(2998, 3002),
        AVENTOE(261, 103),
        KWUARM(263, 105),
        CANDENTINE(265, 107),
        LANTADYME(2481, 2483);

        public final int HerbPrice;
        public final int Margin;
        public final int UnfinishedPrice;
        public final String Name;
        public final int HerbId;
        public final int UnfinishedId;
        private final String UnfinishedName;

        Potion(int herbId, int unfinishedId) throws IOException {
            Name = name().substring(0,1).toUpperCase() + name().substring(1).toLowerCase();
            UnfinishedName = Name + " potion (unf)";
            HerbId = herbId;
            UnfinishedId = unfinishedId;
			HerbPrice = Math.max(GrandExchange.getSellingPrice(herbId), GrandExchange.getBuyingPrice(herbId));
			UnfinishedPrice = Math.min(GrandExchange.getSellingPrice(unfinishedId), GrandExchange.getBuyingPrice(UnfinishedId));
            Margin = UnfinishedPrice - HerbPrice;
        }
    }

 

 

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