Why doesn't calling the main method from another class work?

Question

Java

Code like this:

public class BankAccount {

    int id;
    String name;
    double balance;

}

class BankAccountTest {
    public static void main(String[] args) {

        BankAccount MyAccount = new BankAccount();
        BankAccount YouAccount = new BankAccount();
        BankAccount HisAccount = new BankAccount();

        MyAccount.id = 1;
        MyAccount.name = "ZY";
        MyAccount.balance = 12.35;

        YouAccount.id = 2;
        YouAccount.name = "BL";
        YouAccount.balance = 3654.55;

        HisAccount.id = 3;
        HisAccount.name = "VL";
        HisAccount.balance = 1662.35;

        System.out.println(YouAccount.balance);
    }
}

Throws:
Error: Main method not found in class BankAccount, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

Answer 1

In IntellijIDEA, when moving the main method from the main class, you must change the launch configuration to designate the new class as the main class.