CurrencyConverter Java Program(Dollars to Pounds)

CurrencyConverter Java Program(Dollars to Pounds)

In this tutorial, we will write a java program to convert Dollar to Pound and vice-versa. We will provide a program menu to the user. The Dollar to the pound exchange rate is taken as a constant in the program. In real-time, the exchange can vary from time to time.

 

Code Listing

package com.testingdocs.sample.Questions;

/*
 *Disclaimer:Exchange rate varies from time to time
 *www.testingdocs.com
 */

import java.util.Scanner;

public class CurrencyConverterDemo {

 //Dollar to Pound exchange rate
 public final static double EXCHANGE_RATE=0.80;
 
 public static void main(String[] args) {
 int menuChoice=1;
 Scanner keyboard=new Scanner(System.in);
 while(menuChoice!=3) {
 System.out.println("..................................");
 System.out.println("Program Menu | www.TestingDocs.com");
 System.out.println("..................................");

 System.out.println("1.Convert Dollars to Pounds");
 System.out.println("2.Convert Pounds to Dollars");
 System.out.println("3.Quit the Program\n");
 System.out.print("Enter the menu choice :=");
 menuChoice = keyboard.nextInt();
 if(menuChoice < 1 || menuChoice > 3) {
 System.out.println("Invalid Choice Please Try again");
 continue;
 }
 if(menuChoice==1) {
 System.out.print("Enter the Dollars to convert into Pounds:=");
 double dollars=keyboard.nextDouble();
 double pounds=dollars*EXCHANGE_RATE;
 System.out.println("Dollars " + dollars + "= Pounds " + pounds);
 }

 if(menuChoice==2) {
 System.out.print("Enter the Pounds to convert into Dollars:=");
 double pounds=keyboard.nextDouble();
 double dollars=pounds/EXCHANGE_RATE;
 System.out.println("Pounds " + pounds + "= Dollars " + dollars);
 }


 if(menuChoice==3) {
 System.out.println("Have a nice day.Goodbye!");

 }
 }
 }
}

 

Sample Run Output

Program Menu | www.TestingDocs.com
…………………………….
1.Convert Dollars to Pounds
2.Convert Pounds to Dollars
3.Quit the Program

Enter the menu choice :=2
Enter the Pounds to convert into Dollars:=50
Pounds 50.0= Dollars 62.5
…………………………….
Program Menu | www.TestingDocs.com
…………………………….
1.Convert Dollars to Pounds
2.Convert Pounds to Dollars
3.Quit the Program

Enter the menu choice :=8
Invalid Choice Please Try again
…………………………….
Program Menu | www.TestingDocs.com
…………………………….
1.Convert Dollars to Pounds
2.Convert Pounds to Dollars
3.Quit the Program

Enter the menu choice :=3
Have a nice day.Goodbye!