My game doesnt work and i dont know why | Together Java | Page 1

feral shoreBOT Dec 13, 2022, 7:31 AM

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

feral shoreBOT Dec 13, 2022, 7:31 AM

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

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dense summit Dec 13, 2022, 7:31 AM

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button.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                if (won = false) {
                    try {
                        String TextFromTextfield = jtextfield.getText();
                        Integer Anumber = Integer.parseInt(TextFromTextfield);
                        Guesses++;
                        NumberTest(Anumber);
                    } catch (Exception error) {
                        text1.setBounds(130, 10, 200, 30);
                        text2.setBounds(25, 25, 300, 30);
                        text1.setText("Halt!");
                        text2.setText("Bitte gib eine Zahl zwischen 1 und 100 ein.");
                    }
                } else {
                    
                }
            }
        });

this is what the button used to guess does. if you dont put a number into the textfield it tells you to "Please insert a number between 1 and 100."
now heres my problem: after restarting the game using the button after winning, it always tells you to insert a number between 1 and 100. ive tried many things, googled and asked friends, still no clue. so, what have i done wrong?

fierce rivet Dec 13, 2022, 7:46 AM

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start with a few things

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find out the actual exeption and then place a debug point on either NumberTest( or Guesses++

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from the small section u posted and the behavior, its most likely NumberTest that is messing up

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your code cant trigger on won condition being false or null ( yes null , u used a Boolean, not a boolean ) so its making an exepetion on one of those 4 lines. Debug mode will find it in minutes

dense summit Dec 13, 2022, 7:56 AM

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fierce rivet your code cant trigger on won condition being false or null ( yes null , u used ...

can you tell me what to do exactly? i actually just started with java like 3 days ago, i used ✨ scratch ✨ before. i havent used debug mode yet

fierce rivet Dec 13, 2022, 7:56 AM

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print out the exeption see what it is

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your basicly telling, Hey , if somethign goes wrong, dont care what it is, just print out the text

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in your code are 3 main places where it can go wrong fast so need to isolate them or debug them

dense summit Dec 13, 2022, 7:58 AM

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what is the better choice?

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or what would be easier right now? 😅

fierce rivet Dec 13, 2022, 7:58 AM

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print out the error

dense summit Dec 13, 2022, 7:59 AM

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how do i do that?

fierce rivet Dec 13, 2022, 7:59 AM

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will tell u what is wrong, where and the type

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syso the 'error' variable should usually do it

dense summit Dec 13, 2022, 8:00 AM

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syso?

fierce rivet Dec 13, 2022, 8:00 AM

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system out

dense summit Dec 13, 2022, 8:00 AM

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alr one second

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here it is

fierce rivet Dec 13, 2022, 8:04 AM

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there u go, that's why its failing , its cant translate from the field

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when u win the game, are u resetting the fields with "" ?

dense summit Dec 13, 2022, 8:05 AM

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yeaa it was from another thing i had in the game

fierce rivet Dec 13, 2022, 8:05 AM

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that's the reason

dense summit Dec 13, 2022, 8:05 AM

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it used to keep the number you had typed in to win

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one sec

fierce rivet Dec 13, 2022, 8:06 AM

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i know the code and the trick. Alter your error handling or your flow to avoid that

dense summit Dec 13, 2022, 8:06 AM

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it works, removed the

jtextfield.setText("");

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but is there a way to start with the textfield being empty?

fierce rivet Dec 13, 2022, 8:09 AM

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humanly, that's the way

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u just need to do a little trick for your backend to also know

dense summit Dec 13, 2022, 8:10 AM

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fierce rivet u just need to do a little trick for your backend to also know

?

fierce rivet Dec 13, 2022, 8:11 AM

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well if u read the (humanly visual empty field) , it wont be empty, but have a value

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we see it as empty, but as value, its ""

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for example as in your case, u need to grab a number, but your also with a use case where it can be ""

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so u need to tell your code, grab a number , and watch out because it can be empty or ""

dense summit Dec 13, 2022, 8:13 AM

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ok, let me try

fierce rivet Dec 13, 2022, 8:15 AM

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also change your Boolean to boolean if u dont need the third condition from Boolean ( boolean=true/false Boolean=true/false/null )

dense summit Dec 13, 2022, 8:17 AM

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just did

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yeah

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nah

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no clue

dense summit Dec 13, 2022, 8:17 AM

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fierce rivet so u need to tell your code, grab a number , and watch out because it can be em...

how do i do it?

fierce rivet Dec 13, 2022, 8:19 AM

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either u handle the exeption and ask again, of u just add some code to validate the field ( which already should of been there )

dense summit Dec 13, 2022, 8:22 AM

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why does

String TextFromTextfield = jtextfield.getText();
                        Integer Anumber = Integer.parseInt(TextFromTextfield);

ignore ""?

fierce rivet Dec 13, 2022, 8:23 AM

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it doesnt

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the first line reads that , the second tries to convert it to an Integer, and as its no number, it fails

dense summit Dec 13, 2022, 8:25 AM

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so it gets taken out because the input is ""50 or any number, right?

fierce rivet Dec 13, 2022, 8:25 AM

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"" means emtpy field

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after your win, your setting it to "" and then trying to read it as an int

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or is there an action u forgot to mention ?

dense summit Dec 13, 2022, 8:26 AM

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i type smth into the textfield before i confirm

fierce rivet Dec 13, 2022, 8:26 AM

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print out the actual textfield then to see what it reads

dense summit Dec 13, 2022, 8:27 AM

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so

System.out.println(jtextfield);

right?

fierce rivet Dec 13, 2022, 8:27 AM

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and when u get time learn on what debug does , that will save u alot of time and adding prints

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jtextfield.getText();

dense summit Dec 13, 2022, 8:27 AM

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fierce rivet and when u get time learn on what debug does , that will save u alot of time and...

is there like a yt vid or anything you can recommend?

fierce rivet Dec 13, 2022, 8:28 AM

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else your just printing the object

fierce rivet Dec 13, 2022, 8:28 AM

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dense summit is there like a yt vid or anything you can recommend?

the manual :p

dense summit Dec 13, 2022, 8:30 AM

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got it

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one sec

dense summit Dec 13, 2022, 8:33 AM

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fierce rivet else your just printing the object

blank

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simply disappears

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and

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doesnt print anything

fierce rivet Dec 13, 2022, 8:45 AM

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which mean its probably not reading the number

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is the code u pasted earlier your entire code ?

dense summit Dec 13, 2022, 8:52 AM

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import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;
import java.util.Scanner;
import java.util.Set;
import java.util.concurrent.ThreadLocalRandom;

public class Main {

I think this is unnecessary, but I changed a lot and also had made this game out of another ones code i did a day earlier, at the end i was unsure which ones i can keep and which ones are useless so i simply kept them all

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i think Scanner is useless by now

fierce rivet Dec 13, 2022, 8:52 AM

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most of the code u have is kinda useless, 😉

dense summit Dec 13, 2022, 8:53 AM

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fierce rivet most of the code u have is kinda useless, 😉

yeaa i know lmao

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3 days into it you know

fierce rivet Dec 13, 2022, 8:53 AM

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your still new and your repeating yourselft multuple unneeded times. That will change with exp

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its not the java code, u said u coded earlier so that's why its wierd. Unless it was just small things u made

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also if your using a good Ide, it will tell u what's unneeded as imports etc

dense summit Dec 13, 2022, 8:55 AM

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nah i deleted everything but the import stuff at the end, i just didnt know which imports were from this game and which were from the earlier one. i just used the old one as help

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to like

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remember how i did certain stuff

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yk

dense summit Dec 13, 2022, 8:55 AM

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fierce rivet also if your using a good Ide, it will tell u what's unneeded as imports etc

IntelliJ

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i mean it does but

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fierce rivet Dec 13, 2022, 8:56 AM

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use that, dont manual delete. Save time and effort 🙂

dense summit Dec 13, 2022, 8:56 AM

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look at this tho

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it says its unneeded

fierce rivet Dec 13, 2022, 8:56 AM

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there's an icon that shows on the unused ones, use that menu to clear them all

dense summit Dec 13, 2022, 8:56 AM

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but i do actually need it

dense summit Dec 13, 2022, 8:57 AM

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dense summit but i do actually need it

fierce rivet Dec 13, 2022, 8:57 AM

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its unused

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tried erasing the importline ?

dense summit Dec 13, 2022, 8:58 AM

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it was just bugging around i guess, got colors right after i clicked on the line

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okk, removed them

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one thing tho

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jtextfield.setText("") at the bottom

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every time you guess wrong

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why does this not affect the program?

fierce rivet Dec 13, 2022, 9:10 AM

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there alot of things that are currently not working in your program, one by one 😉

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like u never get a new number, the win condition does not show etc

dense summit Dec 13, 2022, 9:11 AM

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the win condition?

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it does

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just that its german

fierce rivet Dec 13, 2022, 9:11 AM

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im from belgium, the german is no problem

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so here its 85 ( alter the text2 )

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enter 85, no thing happens

dense summit Dec 13, 2022, 9:12 AM

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how did you get to 100.85 lol i never got that

fierce rivet Dec 13, 2022, 9:12 AM

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just added the variable to print

dense summit Dec 13, 2022, 9:12 AM

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#

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after typing 85

fierce rivet Dec 13, 2022, 9:12 AM

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1st rule of working with GUI, be able to overwrite it so work on its flow

dense summit Dec 13, 2022, 9:13 AM

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fierce rivet 1st rule of working with GUI, be able to overwrite it so work on its flow

wdym

fierce rivet Dec 13, 2022, 9:13 AM

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same way with any user input. Make it work once, block it after

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your the programmer, make the program jump to the part where its going wrong, without actaully having to interact with it

dense summit Dec 13, 2022, 9:14 AM

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tell me how lol im new

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my friend and this video
https://youtu.be/HuYs2Vp3GtM
are my whole experience right now lol

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fierce rivet Dec 13, 2022, 9:15 AM

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nope, not going to. Learn the basic syntax and refactor your code first. Also correct name formatting . That's waay more important

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those tricks u will realize on yourself when your enting a value 20-30 times over and over to get somewhere

#My game doesnt work and i dont know why