Hello my friends,

Today I want to share with you a little bit more of my learning progress with Java.

Banking Application (for learning and fun purposes)

This program simulates a banking app where you can 'play' and learn a bit more about Java commands. I'm still at a beginner level, so every progress is a victory!

As you will se below, in this lesson I was learning how to use the "if", "else", and "else if" statements.
I met a friend of mine last weekend, and he also taught me how to use the "while" command, which makes the program rerun automatically. You will see that every time I wrote "stop = false;", the program stopped rerunning automatically.

If you are into learning Java, follow me and I will keep you updated with my progress!

Have a great day and let's code together!

PORTUGUESE 🇧🇷 PORTUGUÊS 🇵🇹

Eai meus amigos da Hive,

Esse programa simula um aplicativo de banco, onde é possível "brincar" e aprender um pouco mais sobre os comando de Java. Ainda estou num nível principiante, portanto cada progresso é uma vitória!

Aplicativo Bancário (para fins de aprendizado e diversão)

Como você verá abaixo, nesta lição eu estava aprendendo a usar as instruções "if", "else" e "else if". Encontrei um amigo meu no último fim de semana, e ele também me ensinou a usar o comando "while", que faz o programa ser executado automaticamente. Você verá que toda vez que escrevi "stop = false;", o programa parou de ser executado automaticamente.

Se você está interessado em aprender Java, siga-me e eu vou mantê-lo atualizado com meu progresso!

Tenha um ótimo dia e vamos codar juntos!


import java.util.Scanner;

public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
boolean stop = true;

    while (stop) {

        System.out.println("Welcome to the banking application");
        System.out.println("Our Operations:");
        System.out.println("Click 1 for cash transfer");
        System.out.println("Click 2 to transfer from balance");
        System.out.println("Click 3 to get money");
        System.out.println("Click 4 for return");
        System.out.println("Click 5 to HACK");
        int operation = sc.nextInt();
        //1 for example

        if (operation == 1) {
            System.out.println("How much money do you want to transfer?");
            System.out.println("Click 1 to transfer from $1 to $100");
            System.out.println("Click 2 to transfer from $101 to $1000");
            System.out.println("Click 3 to transfer more than $1000");

            stop = false;
            int operation3 = sc.nextInt();
            if (operation3 == 1) {
                System.out.println("Enter bank details");
             } else if (operation3 == 2) {
            System.out.println("Transactions above $100 need fingerprint authentication");
             } else if (operation3 == 3) {
            System.out.println("You must allow face recognition for transactions above $1000");
             } else {
            System.out.println("Invalid option selected.");
        }

// o else if da primeira operacao tem que ter sua chave condizendo com a abertura do "if"
        } else if (operation == 2) {
        System.out.println("How much money do you have?");
        stop = false;
        int balance=sc.nextInt();

            System.out.println("How much money do you want to transfer?");
            int transfer=sc.nextInt();
            System.out.println("You transferred your money");
            System.out.println("Your current balance is: " + (balance-transfer));
            System.out.println("Congratulations");
        } else if (operation==3) {
            System.out.println("Enter your bank balance");
            stop = false;
            int bankbalance = sc.nextInt();
            System.out.println("How much money do you want to take?");
            int money = sc.nextInt();
            System.out.println("You have withdrawn: " + (money));
            System.out.println("Your bank balance is now: " + (bankbalance - money));
            System.out.println("Do you wish to return to the main page?");
            System.out.println("Enter 1 to YES and 2 to Exit");

            int operation5 = sc.nextInt();
            if (operation5 == 1) {
            stop = true;
            }else if (operation5 == 2){
                stop = false;
            }else{
                System.out.println("Invalid operation, computer will explode");
            }
        } else if (operation==4) {
            System.out.println("Exit");

        } else if (operation==5) {
            System.out.println("WELCOME TO THE HACKER MENU...");
            System.out.println("WELCOME TO THE HACKER WORLD...");
            System.out.println("Choose your option, 1 to return to the main page or 2 to go deeper");
            int operation2=sc.nextInt();
            if (operation2==2) {

                stop = false;
            }
        } else {
            System.out.println("Invalid operation");
        }
    }
}

}

// Examples below:
// System.out.println("Welcome to the banking application");
// System.out.println("Our Operations:");
// System.out.println("Click 1 to exit from system");
// System.out.println("Click 2 for money transfer");
// System.out.println("Click 3 to get money");
// int operation=sc.nextInt();//1 for example
//
// if (operation1){
// System.out.println("Exiting from system");
// }else if (operation2) {
// System.out.println("Your money is transferring");
// }else if (operation==3) {
// System.out.println("You got your money");
// }else{
// System.out.println("Invalid operation");
//
//
// }

// the difference here from the exam program is that "else if" is
// related to a specific condition, while in the exam program
// else means ANYTHING ELSE THAN THE MINIMUM EXAM RESULT.
// in this banking program, we are giving an ORDER for the computer to OBEY.
// I can use a lot of IFs, but i need to remember that all of them will run at the same time. for example:
// if MALE=true,
// run the following orders: offer t-shirts, shorts, and shaving accessories.
// if olderthan40 = true, offer viagra, etc. take it easy for now

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"O Futuro é incrível"

"The Future is Awesome"