Eclipse Error: Could not find or load main class

[rotund forum]

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

[charred carbon]

Let's not curse in our messages.

[hasty verge]

oh wait sorry

//u stupid
package stat;

import java.util.HashMap;
import java.util.Scanner;

public class Main {
static String name;
static int pin;
static int balance = 0;

static Scanner f = new Scanner(System.in);
static HashMap<String, Object> info = new HashMap<>();


static public void Menu() {
    int m = Integer.parseInt(f.nextLine());

    System.out.println("Login = 0 | Register = 1 | Deposit = 2 | Withdraw = 3 | Information = 4");

    switch (m) {
        case 0:
            Login();
        case 1:
            Register();
        case 2:
            Deposit();
        case 3:
            Withdraw();
        case 4:
            Information();
    }
}

static public void Login() {
    System.out.println("Welcome to the Fucking Bank");
    System.out.println("Proceed to the Login page or Register");
    System.out.println("/n" + "Login = Yes | Register = No");

    String YN = f.nextLine();

    switch (YN.toUpperCase()) {
        case "YES":
            break;
        case "NO":
            Register();
    }
    //TO THE LOGIN
}

static public void Register() {
    System.out.println("Input your Name: ");
    info.put("String", name = f.nextLine());
    System.out.println("Input your Pin: ");
    info.put("String", pin = Integer.parseInt(f.nextLine()));
}
static public void Withdraw() {
    System.out.println("Withdraw");
    info.put("String", balance - Integer.parseInt(f.nextLine()));
}
static public void Deposit() {
    System.out.println("Deposit");
    info.put("String", balance + Integer.parseInt(f.nextLine()));
}

static public void Information() {

}

}

dis should be better

[charred carbon]

Check your run configuration in I'd wagger Eclipse. And why are all your methods static instead of acting upon an object?

I also recommend using this next time:

[rotund forum]

Please use this format for posting code:

```java
// Example java program
int value = 5;
System.out.println(value);
```

Which results in:

// Example java program
int value = 5;
System.out.println(value);

For syntax highlighting, you have to add the name of the language after the three backticks, like ```java. Please make sure to use exactly this format, so no space between the backticks and the language name, and a newline before the code starts. If done right, the syntax highlighting will even be applied to your text as you type, before sending.

simon_verhoeven • used /tag id: code · Nov 21, 2024, 11:48 AM

[hasty verge]

is that bad?

[charred carbon]

Java's on object oriented programming language. Also in your case if it's all on class, and not object level. How would you support multiple registers?

[hasty verge]

wdym multiple registers

[charred carbon]

Or deposit system, whatever you're building.

[livid gyro]

do you have a main function?

[hasty verge]

da program is still ongoing im not yet done

im using eclipse cuz intellij wont run the code

[livid gyro]

because the file you showed doesnt have a main function

you need to create a run config that sets the file that is to be executed to your Main.java that includes your main function

[hasty verge]

how do i do dis?

i had problems with this, so i searched online and couldnt find da probs

so i apologize if im being stupid

i just used it like a few hours ago

[livid gyro]

in intelliJ? or are you using eclipse now

[hasty verge]

intellij bro

as for the eclipse thing

imma reinstall it

[livid gyro]

here the three dots

[livid gyro]

then create a new run config for java application or something similar named (im not on pc right now) and there you can set thr main class

[livid gyro]

try the downarrow on current file

maybe im mixing up stuff

[livid gyro]

add new

[hasty verge]

yeahits fine

whats the new?

theres a lot here

[livid gyro]

on the top left + buttln

Application

the first

[hasty verge]

then whats the next?

[livid gyro]

entee the name of your main file that contains your main function

you can also name your run config

got it?

[hasty verge]

it says not found for some reason

[livid gyro]

.java

[rotund forum]

Looks like you attempted to use a command? Please note that we only use slash-commands on this server 🙂

Try starting your message with a forward-slash / and Discord should open a popup showing you all available commands.
A command might then look like /foo 👍

[livid gyro]

Main.java

the file ending is needed here

[hasty verge]

still da same

[livid gyro]

mhmm

does your Main.java have a main function?

uhh

try stat/Main.java
im not sure maybe you need the package path aswell

its been a while for me aswell

[hasty verge]

public class Main

all i have in my class

is (String[]args) really required?

[livid gyro]

ok so thats the problem probably
every project needs one main function. thats the entry point for the application

it has to be named "public static void main(String args[])

the class name that contains the main function is not really relevant, but its (as far as I know) standart to call it Main.java

[mossy barn]

theres stuff upcoming to make it more flexible but for now, yes, its required

[hasty verge]

yeah i learned this a while ago, the main method is the one always to be executed first

it a need

mb

[livid gyro]

so just add the main function and it should be able to start

and from the main function you can call your other functions

[livid gyro]

its also personal preference but I always think it looks better to write out "public" in the function declarations (just my personal opinion)

[hasty verge]

oh yeah, as for referencing my main method?

how do i do that again>

[livid gyro]

mhm what do you mean?

[hasty verge]

i cant reference it because its (String[]args)

[livid gyro]

you have to do it the other way around

in the main function you call your functions

so
public static void main(...)
Menu()

so basically you never have to call main() as it is automatically being called at the start

[hasty verge]

okay sure, but how do i get back to that main method?

[mossy barn]

move ur logic into a separate method and call that

but u sbould avoid doing recursions for multiple reasons

[livid gyro]

after the function call Menu() is finished, the rest of your main function will be executed

[mossy barn]

instead u should work with loops

if u want to repeat sth, use a loop

calling a method again will just nest the calls, create bugs that are impossible to debug and eventually crash after doing it 200x

[livid gyro]

basically in your main method you should only call funcrtions that do stuff and nothing else

[mossy barn]

(btw, its String[] args. not String args[]. hence its also marked yellow)

[hasty verge]

im pretty sure i typed it correctly but yeah i will do dat.

[hasty verge]

okie imma do that too

thanks guys

[livid gyro]

no problem

got me something to do during my train ride