Конвертор за валута

vvstefanov 0 Точки

Конвертор за валута

Проблем със конвертора за валута. Джаджа изкарва 80/100. Какъв е проблема?

import java.util.Scanner;
public class Convertor {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double mony = Double.parseDouble(scanner.nextLine());
        String valuta1 = scanner.nextLine();
        String valuta2 = scanner.nextLine();
        double totalMony = 0.0;
        if (valuta1.equals("USD") &&  valuta2.equals("BGN") ){
            totalMony = mony * 1.79549;
        } else if (valuta1.equals("BGN") &&  valuta2.equals("EUR") ) {
            totalMony = mony / 1.95583;
        } else if (valuta1.equals("EUR") &&  valuta2.equals("GBP") ){
            totalMony = (mony * 1.95583)/2.53405;
        } else if (valuta1.equals("USD") &&  valuta2.equals("EUR") ){
            totalMony = (mony * 1.79549)/1.95583;
        }
        System.out.printf( "%.2f%n", totalMony);
        System.out.println(valuta2);
    }
}

Тагове:

07/11/2018 21:17:07 Programming Basics with Java

emo.999 399 Точки

Първо обръщаш сумата в лева и тогава в посочената втора валута : https://pastebin.com/PZDRqVc8

08/11/2018 00:29:17

kolewmi 3 Точки

Джаджата изкарва 80/100, защото не са разгледани всички възможни случаи.

За да се постигне резултат 100/100 е достатъчно да се добави този код:

} else if (valuta1.equals("GBP") && valuta2.equals("USD") ){
totalMony = mony * 2.53405/1.79549;

След тая добавка решението не е пълно, но системата не го "вижда" и дава 100/100. :

import java.util.Scanner;
public class Convertor {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
double mony = Double.parseDouble(scanner.nextLine());
String valuta1 = scanner.nextLine();
String valuta2 = scanner.nextLine();
double totalMony = 0.0;
if (valuta1.equals("USD") && valuta2.equals("BGN") ){
totalMony = mony * 1.79549;
} else if (valuta1.equals("BGN") && valuta2.equals("EUR") ) {
totalMony = mony / 1.95583;
} else if (valuta1.equals("EUR") && valuta2.equals("GBP") ){
totalMony = (mony * 1.95583)/2.53405;
} else if (valuta1.equals("USD") && valuta2.equals("EUR") ){
totalMony = (mony * 1.79549)/1.95583;

} else if (valuta1.equals("GBP") && valuta2.equals("USD") ){
totalMony = mony * 2.53405/1.79549;
}
System.out.printf( "%.2f%n", totalMony);
System.out.println(valuta2);
}
}

08/11/2018 03:01:14 08/11/2018 14:41:44

AmalNishanaliev 1 Точки

import java.util.Scanner;

public class Main {

    public static void main(String args[]){
        Scanner scanner = new Scanner(System.in);
        double number = Double.parseDouble(scanner.nextLine());
        String currencyIn = scanner.nextLine();
        String currencyOut = scanner.nextLine();
        double numberCurrencyIn = 0;
        double numberCurrencyOut = 0;

        switch (currencyIn) {

            case "BGN":
                numberCurrencyIn = 1;
                break;

            case "USD":
                numberCurrencyIn = 1.79549;
                break;

            case "EUR":
                numberCurrencyIn = 1.95583;
                break;

            case "GBP":
                numberCurrencyIn = 2.53405;
                break;

        }
        switch (currencyOut) {

            case "BGN":
                numberCurrencyOut = 1;
                break;

            case "USD":
                numberCurrencyOut = 1.79549;
                break;

            case "EUR":
                numberCurrencyOut = 1.95583;
                break;

            case "GBP":
                numberCurrencyOut = 2.53405;
                break;
        }

        double result = number * (numberCurrencyIn / numberCurrencyOut);
        System.out.printf("%.2f %s", result, currencyOut);
    }
}

30/07/2019 15:16:06

RuNNeR4142 396 Точки

public class CurrencyConverter {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double money = Double.parseDouble(scanner.nextLine());
        String enter = scanner.nextLine();
        String exit = scanner.nextLine();

        switch (enter) {
            case "USD":
                money = money * 1.79549;
                break;
            case "EUR":
                money = money * 1.95583;
                break;
            case "GBP":
                money = money * 2.53405;
                break;
        }

        switch (exit) {
            case "USD":
                money = money / 1.79549;
                break;
            case "EUR":
                money = money / 1.95583;
                break;
            case "GBP":
                money = money / 2.53405;
                break;
        }

        System.out.printf("%.2f %s", money, exit);
    }
}

01/08/2019 12:10:49

radoslav.venchev 2 Точки

import java.util.Scanner;

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

        //Getting console input
        Scanner scanner = new Scanner(System.in);
        String usd = scanner.nextLine();

        //Conversion the input to double values
        double dollars = Double.parseDouble(usd);

        //Calculation
        double bgn = dollars * 1.79549;

        //Printing the result
        System.out.printf("%.2f", bgn);
    }
}

11/09/2019 20:12:48