java如何分离所有公式并使其成为子类？
我想把所有的公式（每种货币的一个子类）从main方法中分离出来。我想创建一个公式的子类，并在main方法上调用它们。 有什么办法吗
import java.util.*;
public class CurrencyConverter
{
public void print()
{
System.out.println("Pick an appropriate currency: \n\n 01 - Philippine Peso \n 02 - US Dollar \n 03 - Japan Yen \n 04 - UK Pounds \n 05 - Switzerland Franc \n 06 - Bahrain Dinar");
System.out.println( " 07 - Saudi Arabia Rial \n 08 - Indonesia Rupiah \n 09 - UAE Dirham \n 10 - China Yuan \n 11 - Korea Won \n 12 - Europe Euro \n");
}
public static void main (String[]args)
{
double peso_z = 1;
double dollar_z = 45.17;
double yen_z = 0.37;
double pound_z = 69.5;
double franc_z = 47.64;
double dinar_z = 120.05;
double rial_z = 12.05;
double baht_z = 1.33;
double dirham_z = 12.30;
double yuan_z = 7.28;
double won_z = 0.04;
double euro_z = 49.83;
double rate = 0;
CurrencyConverter w = new CurrencyConverter();
w.print();
System.out.print("Choose the input currency: ");
Scanner sc = new Scanner(System.in);
int choice = sc.nextInt();
String x = null;
switch(choice) {
case 1: x = "Philippine Peso: ";
break;
case 2: x = "US Dollar: ";
break;
case 3: x = "Japan Yen: ";
break;
case 4: x = "UK Pound: ";
break;
case 5: x = "Switzerland Franc: ";
break;
case 6: x = "Bahrain Dinar: ";
break;
case 7: x = "Saudi Arabia Rial: ";
break;
case 8: x = "Indonesia Baht: ";
break;
case 9: x = "UAE Dirham: ";
break;
case 10: x = "China Yuan: ";
break;
case 11: x = "Korea Won: ";
break;
case 12: x = "Europe Euro: ";
break;
default:
System.out.println("404 not found XD");
return;
}
System.out.print("Choose the output currency: ");
int output = sc.nextInt();
System.out.printf("Now enter the input in " +x);
double input = sc.nextDouble();
if(choice == output)
System.out.println("Troller ._. pabobo");
// ~ Peso ~
if(choice == 1 && output == 2)
{
rate = input / dollar_z ;
System.out.print( "The Conversion of Peso to Dollar = " +rate);
}
else if(choice == 1 && output == 3)
{
rate = input / yen_z ;
System.out.print( "The Conversion of Peso to Yen = " +rate);
}
else if(choice == 1 && output == 4)
{
rate = input / pound_z ;
System.out.print( "The Conversion of Peso to Pound = " +rate);
}
else if(choice == 1 && output == 5)
{
rate = input / franc_z ;
System.out.print( "The Conversion of Peso to Franc = " +rate);
}
else if(choice == 1 && output == 6)
{
rate = input / dinar_z ;
System.out.print( "The Conversion of Peso to Dinar = " +rate);
}
else if(choice == 1 && output == 7)
{
rate = input / rial_z ;
System.out.print( "The Conversion of Peso to Rial = " +rate);
}
else if(choice == 1 && output == 8)
{
rate = input / baht_z ;
System.out.print( "The Conversion of Peso to Baht = " +rate);
}
else if(choice == 1 && output == 9)
{
rate = input / dirham_z ;
System.out.print( "The Conversion of Peso to Dirham = " +rate);
}
else if(choice == 1 && output == 10)
{
rate = input / yuan_z ;
System.out.print( "The Conversion of Peso to Yuan = " +rate);
}
else if(choice == 1 && output == 11)
{
rate = input / won_z ;
System.out.print( "The Conversion of Peso to Won = " +rate);
}
else if(choice == 1 && output == 12)
{
rate = input / euro_z ;
System.out.print( "The Conversion of Peso to Euro = " +rate);
}
//Dollar
if(choice == 2 && output == 1)
{
rate = input * dollar_z ;
System.out.print( "The Conversion of Dollar to Peso = " +rate);
}
else if(choice == 2 && output == 3)
{
rate = (input * dollar_z) / yen_z ;
System.out.print( "The Conversion of Dollar to Yen = " +rate);
}
else if(choice == 2 && output == 4)
{
rate = (input * dollar_z) / pound_z ;
System.out.print( "The Conversion of Dollar to Pound = " +rate);
}
else if(choice == 2 && output == 5)
{
rate = (input * dollar_z) / franc_z ;
System.out.print( "The Conversion of Dollar to Franc = " +rate);
}
else if(choice == 2 && output == 6)
{
rate = (input * dollar_z) / dinar_z ;
System.out.print( "The Conversion of Dollar to Dinar = " +rate);
}
else if(choice == 2 && output == 7)
{
rate = (input * dollar_z) / rial_z ;
System.out.print( "The Conversion of Dollar to Rial = " +rate);
}
else if(choice == 2 && output == 8)
{
rate = (input * dollar_z) / baht_z ;
System.out.print( "The Conversion of Dollar to Baht = " +rate);
}
else if(choice == 2 && output == 9)
{
rate = (input * dollar_z) / dirham_z ;
System.out.print( "The Conversion of Dollar to Dirham = " +rate);
}
else if(choice == 2 && output == 10)
{
rate = (input * dollar_z) / yuan_z ;
System.out.print( "The Conversion of Dollar to Yuan = " +rate);
}
else if(choice == 2 && output == 11)
{
rate = (input * dollar_z) / won_z ;
System.out.print( "The Conversion of Dollar to Won = " +rate);
}
else if(choice == 2 && output == 12)
{
rate = (input * dollar_z) / euro_z ;
System.out.print( "The Conversion of Dollar to Euro = " +rate);
}
// ~ Yen ~
if(choice == 3 && output == 1)
{
rate = (input * yen_z);
System.out.print( "The Conversion of Yen to Peso = " +rate);
}
else if(choice == 3 && output == 2)
{
rate = (input * yen_z) / dollar_z ;
System.out.print( "The Conversion of Yen to Dollar = " +rate);
}
else if(choice == 3 && output == 4)
{
rate = (input * yen_z) / pound_z ;
System.out.print( "The Conversion of Yen to Pound = " +rate);
}
else if(choice == 3 && output == 5)
{
rate = (input * yen_z) / franc_z ;
System.out.print( "The Conversion of Yen to Franc = " +rate);
}
else if(choice == 3 && output == 6)
{
rate = (input * yen_z) / dinar_z ;
System.out.print( "The Conversion of Yen to Dinar = " +rate);
}
else if(choice == 3 && output == 7)
{
rate = (input * yen_z) / rial_z ;
System.out.print( "The Conversion of Yen to Rial = " +rate);
}
else if(choice == 3 && output == 8)
{
rate = (input * yen_z) / baht_z ;
System.out.print( "The Conversion of Yen to Baht = " +rate);
}
else if(choice == 3 && output == 9)
{
rate = (input * yen_z) / dirham_z ;
System.out.print( "The Conversion of Yen to Dirham = " +rate);
}
else if(choice == 3 && output == 10)
{
rate = (input * yen_z) / yuan_z ;
System.out.print( "The Conversion of Yen to Yuan = " +rate);
}
else if(choice == 3 && output == 11)
{
rate = (input * yen_z) / won_z ;
System.out.print( "The Conversion of Yen to Won = " +rate);
}
else if(choice == 3 && output == 12)
{
rate = (input * yen_z) / euro_z ;
System.out.print( "The Conversion of Yen to Euro = " +rate);
}
// ~ Pound ~
if(choice == 4 && output == 1)
{
rate = input * pound_z ;
System.out.print( "The Conversion of Pound to Peso = " +rate);
}
else if(choice == 4 && output == 2)
{
rate = (input * pound_z) / dollar_z ;
System.out.print( "The Conversion of Pound to Dollar = " +rate);
}
else if(choice == 4 && output == 3)
{
rate = (input * pound_z) / yen_z ;
System.out.print( "The Conversion of Pound to Yen = " +rate);
}
else if(choice == 4 && output == 5)
{
rate = (input * pound_z) / franc_z ;
System.out.print( "The Conversion of Pound to Franc = " +rate);
}
else if(choice == 4 && output == 6)
{
rate = (input * pound_z) / dinar_z ;
System.out.print( "The Conversion of Pound to Dinar = " +rate);
}
else if(choice == 4 && output == 7)
{
rate = (input * pound_z) / rial_z ;
System.out.print( "The Conversion of Pound to Rial = " +rate);
}
else if(choice == 4 && output == 8)
{
rate = (input * pound_z) / baht_z ;
System.out.print( "The Conversion of Pound to Baht = " +rate);
}
else if(choice == 4 && output == 9)
{
rate = (input * pound_z) / dirham_z ;
System.out.print( "The Conversion of Pound to Dirham = " +rate);
}
else if(choice == 4 && output == 10)
{
rate = (input * pound_z) / yuan_z ;
System.out.print( "The Conversion of Pound to Yuan = " +rate);
}
else if(choice == 4 && output == 11)
{
rate = (input * pound_z) / won_z ;
System.out.print( "The Conversion of Pound to Won = " +rate);
}
else if(choice == 4 && output == 12)
{
rate = (input * pound_z) / euro_z ;
System.out.print( "The Conversion of Pound to Euro = " +rate);
}
// ~ Franc ~
if(choice == 5 && output == 1)
{
rate = input * franc_z ;
System.out.print( "The Conversion of Franc to Peso = " +rate);
}
else if(choice == 5 && output == 2)
{
rate = (input * franc_z) / dollar_z ;
System.out.print( "The Conversion of Franc to Dollar = " +rate);
}
else if(choice == 5 && output == 3)
{
rate = (input * franc_z) / yen_z ;
System.out.print( "The Conversion of Franc to Yen = " +rate);
}
else if(choice == 5 && output == 4)
{
rate = (input * franc_z) / pound_z ;
System.out.print( "The Conversion of Franc to Pound = " +rate);
}
else if(choice == 5 && output == 6)
{
rate = (input * franc_z) / dinar_z ;
System.out.print( "The Conversion of Franc to Dinar = " +rate);
}
else if(choice == 5 && output == 7)
{
rate = (input * franc_z) / rial_z ;
System.out.print( "The Conversion of Franc to Rial = " +rate);
}
else if(choice == 5 && output == 8)
{
rate = (input * franc_z) / baht_z ;
System.out.print( "The Conversion of Franc to Baht = " +rate);
}
else if(choice == 5 && output == 9)
{
rate = (input * franc_z) / dirham_z ;
System.out.print( "The Conversion of Franc to Dirham = " +rate);
}
else if(choice == 5 && output == 10)
{
rate = (input * franc_z) / yuan_z ;
System.out.print( "The Conversion of Franc to Yuan = " +rate);
}
else if(choice == 5 && output == 11)
{
rate = (input * franc_z) / won_z ;
System.out.print( "The Conversion of Franc to Won = " +rate);
}
else if(choice == 5 && output == 12)
{
rate = (input * franc_z) / euro_z ;
System.out.print( "The Conversion of Franc to Euro = " +rate);
}
// ~ Dinar ~
if(choice == 6 && output == 1)
{
rate = input * dinar_z;
System.out.print( "The Conversion of Dinar to Peso = " +rate);
}
else if(choice == 6 && output == 2)
{
rate = (input * dinar_z) / dollar_z ;
System.out.print( "The Conversion of Dinar to Dollar = " +rate);
}
else if(choice == 6 && output == 3)
{
rate = (input * dinar_z) / yen_z ;
System.out.print( "The Conversion of Dinar to Yen = " +rate);
}
else if(choice == 6 && output == 4)
{
rate = (input * dinar_z) / pound_z ;
System.out.print( "The Conversion of Dinar to Pound = " +rate);
}
else if(choice == 6 && output == 5)
{
rate = (input * dinar_z) / franc_z ;
System.out.print( "The Conversion of Dinar to franc = " +rate);
}
else if(choice == 6 && output == 7)
{
rate = (input * dinar_z) / rial_z ;
System.out.print( "The Conversion of Dinar to Rial = " +rate);
}
else if(choice == 6 && output == 8)
{
rate = (input * dinar_z) / baht_z ;
System.out.print( "The Conversion of Dinar to Baht = " +rate);
}
else if(choice == 6 && output == 9)
{
rate = (input * dinar_z) / dirham_z ;
System.out.print( "The Conversion of Dinar to Dirham = " +rate);
}
else if(choice == 6 && output == 10)
{
rate = (input * dinar_z) / yuan_z ;
System.out.print( "The Conversion of Dinar to Yuan = " +rate);
}
else if(choice == 6 && output == 11)
{
rate = (input * dinar_z) / won_z ;
System.out.print( "The Conversion of Dinar to Won = " +rate);
}
else if(choice == 6 && output == 12)
{
rate = (input * dinar_z) / euro_z ;
System.out.print( "The Conversion of Dinar to Euro = " +rate);
}
// ~ Rial ~
if(choice == 7 && output == 1)
{
rate = input * rial_z ;
System.out.print( "The Conversion of Rial to Peso = " +rate);
}
else if(choice == 7 && output == 2)
{
rate = (input * rial_z) / dollar_z ;
System.out.print( "The Conversion of Rial to Dollar = " +rate);
}
else if(choice == 7 && output == 3)
{
rate = (input * rial_z) / yen_z ;
System.out.print( "The Conversion of Rial to Yen = " +rate);
}
else if(choice == 7 && output == 4)
{
rate = (input * rial_z) / pound_z ;
System.out.print( "The Conversion of Rial to Pound = " +rate);
}
else if(choice == 7 && output == 5)
{
rate = (input * rial_z) / franc_z ;
System.out.print( "The Conversion of Rial to Franc = " +rate);
}
else if(choice == 7 && output == 6)
{
rate = (input * rial_z) / dinar_z ;
System.out.print( "The Conversion of Rial to Dinar = " +rate);
}
else if(choice == 7 && output == 8)
{
rate = (input * rial_z) / baht_z ;
System.out.print( "The Conversion of Rial to Baht = " +rate);
}
else if(choice == 7 && output == 9)
{
rate = (input * rial_z) / dirham_z ;
System.out.print( "The Conversion of Rial to Dirham = " +rate);
}
else if(choice == 7 && output == 10)
{
rate = (input * rial_z) / yuan_z ;
System.out.print( "The Conversion of Rial to Yuan = " +rate);
}
else if(choice == 7 && output == 11)
{
rate = (input * rial_z) / won_z ;
System.out.print( "The Conversion of Rial to Won = " +rate);
}
else if(choice == 7 && output == 2)
{
rate = (input * rial_z) / euro_z ;
System.out.print( "The Conversion of Rial to Euro = " +rate);
}
// ~ Baht ~
if(choice == 8 && output == 1)
{
rate = input * baht_z;
System.out.print( "The Conversion of Baht to Peso = " +rate);
}
else if(choice == 8 && output == 2)
{
rate = (input * baht_z) / dollar_z ;
System.out.print( "The Conversion of Baht to Dollar = " +rate);
}
else if(choice == 8 && output == 3)
{
rate = (input * baht_z) / yen_z ;
System.out.print( "The Conversion of Baht to Yen = " +rate);
}
else if(choice == 8 && output == 4)
{
rate = (input * baht_z) / pound_z ;
System.out.print( "The Conversion of Baht to Pound = " +rate);
}
else if(choice == 8 && output == 5)
{
rate = (input * baht_z) / franc_z ;
System.out.print( "The Conversion of Baht to Franc = " +rate);
}
else if(choice == 8 && output == 6)
{
rate = (input * baht_z) / dinar_z ;
System.out.print( "The Conversion of Baht to Dinar = " +rate);
}
else if(choice == 8 && output == 7)
{
rate = (input * baht_z) / rial_z ;
System.out.print( "The Conversion of Baht to Rial = " +rate);
}
else if(choice == 8 && output == 9)
{
rate = (input * baht_z) / dirham_z ;
System.out.print( "The Conversion of Baht to Dirham = " +rate);
}
else if(choice == 8 && output == 10)
{
rate = (input * baht_z) / yuan_z ;
System.out.print( "The Conversion of Baht to Yuan = " +rate);
}
else if(choice == 8 && output == 11)
{
rate = (input * baht_z) / won_z ;
System.out.print( "The Conversion of Baht to Won = " +rate);
}
else if(choice == 8 && output == 12)
{
rate = (input * baht_z) / euro_z ;
System.out.print( "The Conversion of Baht to Euro = " +rate);
}
// ~ Dirham ~
if(choice == 9 && output == 1)
{
rate = input * dirham_z;
System.out.print( "The Conversion of Dirham to Peso = " +rate);
}
else if(choice == 9 && output == 2)
{
rate = (input * dirham_z) / dollar_z ;
System.out.print( "The Conversion of Dirham to Dollar = " +rate);
}
else if(choice == 9 && output == 3)
{
rate = (input * dirham_z) / yen_z ;
System.out.print( "The Conversion of Dirham to Yen = " +rate);
}
else if(choice == 9 && output == 4)
{
rate = (input * dirham_z) / pound_z ;
System.out.print( "The Conversion of Dirham to Pound = " +rate);
}
else if(choice == 9 && output == 5)
{
rate = (input * dirham_z) / franc_z ;
System.out.print( "The Conversion of Dirham to Franc = " +rate);
}
else if(choice == 9 && output == 6)
{
rate = (input * dirham_z) / dinar_z ;
System.out.print( "The Conversion of Dirham to Dinar = " +rate);
}
else if(choice == 9 && output == 7)
{
rate = (input * dirham_z) / rial_z ;
System.out.print( "The Conversion of Dirham to Rial = " +rate);
}
else if(choice == 9 && output == 8)
{
rate = (input * dirham_z) / baht_z ;
System.out.print( "The Conversion of Dirham to Baht = " +rate);
}
else if(choice == 9 && output == 10)
{
rate = (input * dirham_z) / yuan_z ;
System.out.print( "The Conversion of Dirham to Yuan = " +rate);
}
else if(choice == 9 && output == 11)
{
rate = (input * dirham_z) / won_z ;
System.out.print( "The Conversion of Dirham to Won = " +rate);
}
else if(choice == 9 && output == 12)
{
rate = (input * dirham_z) / euro_z ;
System.out.print( "The Conversion of Dirham to Euro = " +rate);
}
// ~ Yuan ~
if(choice == 10 && output == 1)
{
rate = input * yuan_z;
System.out.print( "The Conversion of Yuan to Peso = " +rate);
}
else if(choice == 10 && output == 2)
{
rate = (input * yuan_z) / dollar_z ;
System.out.print( "The Conversion of Yuan to Dollar = " +rate);
}
else if(choice == 10 && output == 3)
{
rate = (input * yuan_z) / yen_z ;
System.out.print( "The Conversion of Yuan to Yen = " +rate);
}
else if(choice == 10 && output == 4)
{
rate = (input * yuan_z) / pound_z ;
System.out.print( "The Conversion of Yuan to Pound = " +rate);
}
else if(choice == 10 && output == 5)
{
rate = (input * yuan_z) / franc_z ;
System.out.print( "The Conversion of Yuan to Franc = " +rate);
}
else if(choice == 10 && output == 6)
{
rate = (input * yuan_z) / dinar_z ;
System.out.print( "The Conversion of Yuan to Dinar = " +rate);
}
else if(choice == 10 && output == 7)
{
rate = (input * yuan_z) / rial_z ;
System.out.print( "The Conversion of Yuan to Rial = " +rate);
}
else if(choice == 10 && output == 8)
{
rate = (input * yuan_z) / baht_z ;
System.out.print( "The Conversion of Yuan to Baht = " +rate);
}
else if(choice == 10 && output == 9)
{
rate = (input * yuan_z) / dirham_z ;
System.out.print( "The Conversion of Yuan to Dirham = " +rate);
}
else if(choice == 10 && output == 11)
{
rate = (input * yuan_z) / won_z ;
System.out.print( "The Conversion of Yuan to Won = " +rate);
}
else if(choice == 10 && output == 12)
{
rate = (input * yuan_z) / euro_z ;
System.out.print( "The Conversion of Yuan to Euro = " +rate);
}
// ~ Won ~
if(choice == 11 && output == 1)
{
rate = input * won_z;
System.out.print( "The Conversion of Won to Peso = " +rate);
}
else if(choice == 11 && output == 2)
{
rate = (input * won_z) / dollar_z ;
System.out.print( "The Conversion of Won to Dollar = " +rate);
}
else if(choice == 11 && output == 3)
{
rate = (input * won_z) / yen_z ;
System.out.print( "The Conversion of Won to Yen = " +rate);
}
else if(choice == 11 && output == 4)
{
rate = (input * won_z) / pound_z ;
System.out.print( "The Conversion of Won to Pound = " +rate);
}
else if(choice == 11 && output == 5)
{
rate = (input * won_z) / franc_z ;
System.out.print( "The Conversion of Won to Franc = " +rate);
}
else if(choice == 11 && output == 6)
{
rate = (input * won_z) / dinar_z ;
System.out.print( "The Conversion of Won to Dinar = " +rate);
}
else if(choice == 11 && output == 7)
{
rate = (input * won_z) / rial_z ;
System.out.print( "The Conversion of Won to Rial = " +rate);
}
else if(choice == 11 && output == 8)
{
rate = (input * won_z) / baht_z ;
System.out.print( "The Conversion of Won to Baht = " +rate);
}
else if(choice == 11 && output == 9)
{
rate = (input * won_z) / dirham_z ;
System.out.print( "The Conversion of Won to Dirham = " +rate);
}
else if(choice == 11 && output == 10)
{
rate = (input * won_z) / yuan_z ;
System.out.print( "The Conversion of Won to Yuan = " +rate);
}
else if(choice == 11 && output == 12)
{
rate = (input * won_z) / euro_z ;
System.out.print( "The Conversion of Won to Euro = " +rate);
}
// ~ Euro ~
if(choice == 12 && output == 1)
{
rate = input * euro_z;
System.out.print( "The Conversion of Euro to Peso = " +rate);
}
else if(choice == 12 && output == 2)
{
rate = (input * euro_z) / dollar_z ;
System.out.print( "The Conversion of Euro to Dollar = " +rate);
}
else if(choice == 12 && output == 3)
{
rate = (input * euro_z) / yen_z ;
System.out.print( "The Conversion of Euro to Yen = " +rate);
}
else if(choice == 12 && output == 4)
{
rate = (input * euro_z) / pound_z ;
System.out.print( "The Conversion of Euro to Pound = " +rate);
}
else if(choice == 12 && output == 5)
{
rate = (input * euro_z) / franc_z ;
System.out.print( "The Conversion of Euro to Franc = " +rate);
}
else if(choice == 12 && output == 6)
{
rate = (input * euro_z) / dinar_z ;
System.out.print( "The Conversion of Euro to Dinar = " +rate);
}
else if(choice == 12 && output == 7)
{
rate = (input * euro_z) / rial_z ;
System.out.print( "The Conversion of Euro to Rial = " +rate);
}
else if(choice == 12 && output == 8)
{
rate = (input * euro_z) / baht_z ;
System.out.print( "The Conversion of Euro to Baht = " +rate);
}
else if(choice == 12 && output == 9)
{
rate = (input * euro_z) / dirham_z ;
System.out.print( "The Conversion of Euro to Dirham = " +rate);
}
else if(choice == 12 && output == 10)
{
rate = (input * euro_z) / yuan_z ;
System.out.print( "The Conversion of Euro to Yuan = " +rate);
}
else if(choice == 12 && output == 11)
{
rate = (input * euro_z) / won_z ;
System.out.print( "The Conversion of Euro to Won = " +rate);
}
}
}
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