Turn this code from a .java to .jar | Together Java | Page 1

cursive obsidian Mar 10, 2024, 5:12 PM

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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Scanner;


public class App {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter A stock symbol (example, BMY, TSLA): ");
        String stockSymbol = scanner.nextLine().toUpperCase();
        scanner.close();

        try {
            String apiUrl = "https://query1.finance.yahoo.com/v8/finance/chart/" + stockSymbol + "?interval=1d";

            URL url = new URL(apiUrl);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");

            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();

            double stockPrice = parseStockPriceFromResponse(response.toString());

            if (stockPrice != -1.0) {
                System.out.println("Current " + stockSymbol + " stock price: $" + stockPrice);
            } else {
                System.err.println("Error fetching stock price. Please check the stock symbol.");
            }
        } catch (Exception e) {
            System.err.println("Error fetching stock price: " + e.getMessage());
        }
    }

    private static double parseStockPriceFromResponse(String jsonResponse) {
        try {
            int startIndex = jsonResponse.indexOf("\"regularMarketPrice\":") + 21;
            int endIndex = jsonResponse.indexOf(",", startIndex);
            String priceString = jsonResponse.substring(startIndex, endIndex);
            double stockPrice = Double.parseDouble(priceString);

            return stockPrice;
        } catch (Exception e) {
            System.err.println("Error parsing JSON: " + e.getMessage());
            return -1.0; 
        }
    }
}

knotty ermineBOT Mar 10, 2024, 5:12 PM

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cursive obsidian ```java import java.io.BufferedReader; import java.io.InputStreamReader; import ...

Detected code, here are some useful tools:

Formatted code

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Scanner;

public class App {
  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.print("Enter A stock symbol (example, BMY, TSLA): ");
    String stockSymbol = scanner.nextLine().toUpperCase();
    scanner.close();
    try {
      String apiUrl = "https://query1.finance.yahoo.com/v8/finance/chart/" + stockSymbol + "?interval=1d";
      URL url = new URL(apiUrl);
      HttpURLConnection connection = (HttpURLConnection) url.openConnection();
      connection.setRequestMethod("GET");
      BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
      StringBuilder response = new StringBuilder();
      String line;
      while ((line = reader.readLine()) != null ) {
        response.append(line);
      }
      reader.close();
      double stockPrice = parseStockPriceFromResponse(response.toString());
      if (stockPrice !=  - 1.0) {
        System.out.println("Current " + stockSymbol + " stock price: $" + stockPrice);
      }
      else {
        System.err.println("Error fetching stock price. Please check the stock symbol.");
      }
    } catch (Exception e) {
      System.err.println("Error fetching stock price: " + e.getMessage());
    }
  }
  private static double parseStockPriceFromResponse(String jsonResponse) {
    try {
      int startIndex = jsonResponse.indexOf("\"regularMarketPrice\":") + 21;
      int endIndex = jsonResponse.indexOf(",", startIndex);
      String priceString = jsonResponse.substring(startIndex, endIndex);
      double stockPrice = Double.parseDouble(priceString);
      return stockPrice;
    } catch (Exception e) {
      System.err.println("Error parsing JSON: " + e.getMessage());
      return  - 1.0;
    }
  }
}

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<@&987246399047479336> please have a look, thanks.

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You can use </chatgpt:1108714622413963314> to ask ChatGPT about your question while you wait for a human to respond.

cursive obsidian Mar 10, 2024, 5:13 PM

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please turn that from a .java to .jar

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then send it here

thick delta Mar 10, 2024, 5:13 PM

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u want a runnable jar?

dense glacier Mar 10, 2024, 5:13 PM

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cursive obsidian then send it here

why can't you do it yourself ?

thick delta Mar 10, 2024, 5:13 PM

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we can show u how to do it urself, perhaps that's better on the long run?

cursive obsidian Mar 10, 2024, 5:13 PM

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dense glacier why can't you do it yourself ?

i tried 😭

cursive obsidian Mar 10, 2024, 5:13 PM

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thick delta u want a runnable jar?

yeah

cursive obsidian Mar 10, 2024, 5:14 PM

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thick delta we can show u how to do it urself, perhaps that's better on the long run?

please do

thick delta Mar 10, 2024, 5:14 PM

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do u have an IDE like intellij?

cursive obsidian Mar 10, 2024, 5:14 PM

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im using VSCode

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😭

thick delta Mar 10, 2024, 5:14 PM

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okay, vsc is generally rather bad for java. but afaik it can create runnable jars as well

dense glacier Mar 10, 2024, 5:14 PM

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you could do it from command lines

cursive obsidian Mar 10, 2024, 5:15 PM

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i tried

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from like googling the commands i should use

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i got sum errors

dense glacier Mar 10, 2024, 5:15 PM

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show them please

cursive obsidian Mar 10, 2024, 5:15 PM

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one sec

dense glacier Mar 10, 2024, 5:15 PM

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and show the commands you used

thick delta Mar 10, 2024, 5:15 PM

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https://dev.to/rohitk570/create-an-executable-jar-file-on-vs-code-n-command-line-154b

DEV Community

Create an executable JAR file on VS Code n Command line

So what exactly is JAR? The Jar (Java Archive) tool of JDK used to package one or more...

cursive obsidian Mar 10, 2024, 5:15 PM

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first it told me to use

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Bash
javac App.java

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dense glacier Mar 10, 2024, 5:15 PM

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cursive obsidian Bash javac App.java

so ?

cursive obsidian Mar 10, 2024, 5:15 PM

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where i got that

dense glacier Mar 10, 2024, 5:16 PM

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cursive obsidian

open cmd and run javac App.java

thick delta Mar 10, 2024, 5:16 PM

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(the vsc ui can do it with a few clicks without commands)

cursive obsidian Mar 10, 2024, 5:16 PM

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thick delta (the vsc ui can do it with a few clicks without commands)

really?

thick delta Mar 10, 2024, 5:16 PM

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yeah as shown in the article i just linked

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but ofc it ultimately only uses commands under the hood. commands that u could also use manually

cursive obsidian Mar 10, 2024, 5:18 PM

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my calc dosent show up

proper carbon Mar 10, 2024, 5:18 PM

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IntelliJ CE is also free =>

knotty ermineBOT Mar 10, 2024, 5:18 PM

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IntelliJ CE is a free to use IDE that we recommend for Java/Kotlin development. You can download it through the toolbox (recommended), or from the bottom link on the download page

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dense glacier Mar 10, 2024, 5:18 PM

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cursive obsidian

Your main class is called App

cursive obsidian Mar 10, 2024, 5:18 PM

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o

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k

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ik

dense glacier Mar 10, 2024, 5:19 PM

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cursive obsidian

so does it work ?

cursive obsidian Mar 10, 2024, 5:19 PM

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oo it worked

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yea

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coral basalt Mar 10, 2024, 5:22 PM

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dont close the scanner if its using System.in

cursive obsidian Mar 10, 2024, 6:01 PM

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one more thing

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i tried turning the .jar to a .exe

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using Launch4J

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it dosent work

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like the exe got made

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but when i launch it

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nun happen

coral basalt Mar 10, 2024, 6:03 PM

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its like a console only application right?

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I think you might need to do some setup in launch4j for that

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but not sure

cursive obsidian Mar 10, 2024, 6:04 PM

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coral basalt its like a console only application right?

yea

cursive obsidian Mar 10, 2024, 6:04 PM

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coral basalt but not sure

do yk how i would do that

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it might be a issue with the .jar as i wasnt able to run that either

coral basalt Mar 10, 2024, 6:04 PM

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uh yeah most likely

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you tried running it from console?

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java -jar file.jar?

cursive obsidian Mar 10, 2024, 6:05 PM

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nope

coral basalt Mar 10, 2024, 6:05 PM

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try that

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and see if you get an error

cursive obsidian Mar 10, 2024, 6:05 PM

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coral basalt Mar 10, 2024, 6:06 PM

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the -jar needs to be together

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no whitespace

cursive obsidian Mar 10, 2024, 6:07 PM

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it works

coral basalt Mar 10, 2024, 6:07 PM

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good

cursive obsidian Mar 10, 2024, 6:08 PM

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yeah

coral basalt Mar 10, 2024, 6:08 PM

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cursive obsidian Mar 10, 2024, 6:09 PM

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do i type that into my console?

coral basalt Mar 10, 2024, 6:09 PM

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first do you have a config for generating the exe?

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well

cursive obsidian Mar 10, 2024, 6:10 PM

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it auto created one

coral basalt Mar 10, 2024, 6:10 PM

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I think this is not helpful actually

cursive obsidian Mar 10, 2024, 6:10 PM

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when i used launch4j

coral basalt Mar 10, 2024, 6:10 PM

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I missunderstood the docs I think

cursive obsidian Mar 10, 2024, 6:10 PM

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o lol

cursive obsidian Mar 10, 2024, 6:10 PM

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coral basalt first do you have a config for generating the exe?

you mean like a xml file tho right

coral basalt Mar 10, 2024, 6:12 PM

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on this screen

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try selecting console

cursive obsidian Mar 10, 2024, 6:13 PM

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im gonna try geniuinecoder.com

coral basalt Mar 10, 2024, 6:13 PM

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?

cursive obsidian Mar 10, 2024, 6:14 PM

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cursive obsidian Mar 10, 2024, 6:14 PM

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coral basalt ?

its a online .jar to .exe

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thing

coral basalt Mar 10, 2024, 6:14 PM

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dont do that

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use launch4j

cursive obsidian Mar 10, 2024, 6:14 PM

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alr

cursive obsidian Mar 10, 2024, 6:14 PM

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coral basalt on this screen

kk

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is this what could be causing it

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wait

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i jus realizied

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that sais JRE

coral basalt Mar 10, 2024, 6:17 PM

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it depends

cursive obsidian Mar 10, 2024, 6:17 PM

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not JDK

coral basalt Mar 10, 2024, 6:17 PM

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thats fine

cursive obsidian Mar 10, 2024, 6:17 PM

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does it matter>

coral basalt Mar 10, 2024, 6:17 PM

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only JRE is needed to run a jar

cursive obsidian Mar 10, 2024, 6:17 PM

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i coded it in JDK 21

coral basalt Mar 10, 2024, 6:17 PM

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JDK is needed for developer

cursive obsidian Mar 10, 2024, 6:18 PM

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im gonna try this

coral basalt Mar 10, 2024, 6:18 PM

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because?

cursive obsidian Mar 10, 2024, 6:18 PM

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idk

coral basalt Mar 10, 2024, 6:18 PM

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see

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so dont

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lol

cursive obsidian Mar 10, 2024, 6:18 PM

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the guy from youtube did

coral basalt Mar 10, 2024, 6:18 PM

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check in console which java version you got

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java --version

cursive obsidian Mar 10, 2024, 6:19 PM

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coral basalt Mar 10, 2024, 6:19 PM

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so version 21 should run fine

cursive obsidian Mar 10, 2024, 6:19 PM

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k

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so should i try making that exe now

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or are their any othe rsettings

coral basalt Mar 10, 2024, 6:20 PM

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coral basalt try selecting console

do this at least

cursive obsidian Mar 10, 2024, 6:20 PM

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i did

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i read that alrdy

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it workss

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ty

coral basalt Mar 10, 2024, 6:21 PM

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nice

cursive obsidian Mar 10, 2024, 6:22 PM

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oop

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it crashes

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cuz the code is sopose to be a current stock price finder

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but once i put in the stock symbol

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it crashes

coral basalt Mar 10, 2024, 6:22 PM

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I doubt that, I guess it just finished running and thus closed the program

cursive obsidian Mar 10, 2024, 6:23 PM

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is their anyway

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i can keep it alive longer

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so its possible to see the values

coral basalt Mar 10, 2024, 6:24 PM

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uh I think you could technically put a scanner.nextLine() a the end to bypass that

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and after user presses enter its going to close

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not sure if there is a different way (official way)

cursive obsidian Mar 10, 2024, 6:24 PM

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damn alright

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one sec ill try that

coral basalt Mar 10, 2024, 6:25 PM

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also I would prefer using the official tool jpackage instead of launch4j

cursive obsidian Mar 10, 2024, 6:25 PM

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o damn

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i dont have that installed

coral basalt Mar 10, 2024, 6:25 PM

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but both works here

coral basalt Mar 10, 2024, 6:25 PM

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cursive obsidian i dont have that installed

you have

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its in the JDK

cursive obsidian Mar 10, 2024, 6:25 PM

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ohh

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alr

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i updated the code

cursive obsidian Mar 10, 2024, 6:34 PM

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coral basalt you have

is thei ranyway

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i can get a gui in

dapper wren Mar 10, 2024, 8:19 PM

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if u code it in , u can just convert it again 😉

#Turn this code from a .java to .jar