Java Program to Implement Currency Converter, Distance Converter, and Time Converter Using Packages

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Aim:

To develop a java application to implement currency converter, distance converter and time converter using the concept of packages.

Procedure:

  1. Create a Package currencyconversion and place the class currency under the package
  2. Create the methods to perform currency conversion from dollar to rupee ,rupee to dollar,euro to rupee , rupee to euro , yen to rupee and rupee to yen.
  3. Create the package distanceconverion and create the class distance within the package
  4. Create the methods to convert from meter to km, km to meter, miles to km,km to miles
  5. Create the package timeconversion and create the class timer .Create the methods to convert from hours to minutes ,hours to seconds , minutes to hours and seconds to hours
  6. Create a class and  import the packages currencyconversion,distanceconversion and time conversion.Create the objects for the class currency,distance and timer.
  7. Get the choice from the user and invoke the methods to perform the corresponding conversion and display the value.

Program:

currencyconversion.java

package currencyconversion;
import java.util.*;
public class currency
{
double inr,usd;
double euro,yen;
Scanner in=new Scanner(System.in);
public void dollartorupee()
{
System.out.println("Enter dollars to convert into Rupees:");
usd=in.nextInt();
inr=usd*67;
System.out.println("Dollar ="+usd+"equal to INR="+inr);
}
public void rupeetodollar()
{
System.out.println("Enter Rupee to convert into Dollars:");
inr=in.nextInt();
usd=inr/67;
System.out.println("Rupee ="+inr+"equal to Dollars="+usd);
}
public void eurotorupee()
{
System.out.println("Enter euro to convert into Rupees:");
euro=in.nextInt();
inr=euro*79.50;
System.out.println("Euro ="+euro +"equal to INR="+inr);
}
public void rupeetoeuro()
{
System.out.println("Enter Rupees to convert into Euro:");
inr=in.nextInt();
euro=(inr/79.50);
System.out.println("Rupee ="+inr +"equal to Euro="+euro);
}
public void yentorupee()
{
System.out.println("Enter yen to convert into Rupees:");
yen=in.nextInt();
inr=yen*0.61;
System.out.println("YEN="+yen +"equal to INR="+inr);
}
public void rupeetoyen()
{
System.out.println("Enter Rupees to convert into Yen:");
inr=in.nextInt();
yen=(inr/0.61);
System.out.println("INR="+inr +"equal to YEN"+yen);
}
}

distance.java

package distanceconversion;
import java.util.*;
public class distance
{
double km,m,miles;
Scanner sc = new Scanner(System.in);
public void kmtom()
{
System.out.print("Enter in km ");
km=sc.nextDouble();
m=(km*1000);
System.out.println(km+"km" +"equal to"+m+"metres");
}
public void mtokm()
{
System.out.print("Enter in meter ");
m=sc.nextDouble();
km=(m/1000);
System.out.println(m+"m" +"equal to"+km+"kilometres");
}
public void milestokm()
{ 
System.out.print("Enter in miles");
miles=sc.nextDouble();
km=(miles*1.60934);
System.out.println(miles+"miles" +"equal to"+km+"kilometres");
}
public void kmtomiles()
{
System.out.print("Enter in km");
km=sc.nextDouble();
miles=(km*0.621371);
System.out.println(km+"km" +"equal to"+miles+"miles");
}
}

timer.java

package timeconversion;
import java.util.*;
public class timer
{
int hours,seconds,minutes;
int input;
Scanner sc = new Scanner(System.in);
public void secondstohours()
{
System.out.print("Enter the number of seconds: ");
input = sc.nextInt();
hours = input / 3600;
minutes = (input % 3600) / 60;
seconds = (input % 3600) % 60;
System.out.println("Hours: " + hours);
System.out.println("Minutes: " + minutes);
System.out.println("Seconds: " + seconds);
}
public void minutestohours()
{
System.out.print("Enter the number of minutes: ");
minutes=sc.nextInt();
hours=minutes/60;
minutes=minutes%60;
System.out.println("Hours: " + hours);
System.out.println("Minutes: " + minutes);
}
public void hourstominutes()
{ 
System.out.println("enter the no of hours");
hours=sc.nextInt();
minutes=(hours*60);
System.out.println("Minutes: " + minutes);
}
public void hourstoseconds()
{ 
System.out.println("enter the no of hours");
hours=sc.nextInt();
seconds=(hours*3600);
System.out.println("Minutes: " + seconds);
}
}

converter.java

import java.util.*;
import java.io.*;
import currencyconversion.*;
import distanceconversion.*;
import timeconversion.*;
class converter
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
int choice,ch;
currency c=new currency();
distance d=new distance();
timer t=new timer();
do
{
System.out.println("1.dollar to rupee ");
System.out.println("2.rupee to dollar ");
System.out.println("3.Euro to rupee ");
System.out.println("4..rupee to Euro ");
System.out.println("5.Yen to rupee ");
System.out.println("6.Rupee to Yen ");
System.out.println("7.Meter to kilometer ");
System.out.println("8.kilometer to meter ");
System.out.println("9.Miles  to kilometer ");
System.out.println("10.kilometer to miles");
System.out.println("11.Hours to Minutes");
System.out.println("12.Hours to Seconds");
System.out.println("13.Seconds to Hours");
System.out.println("14.Minutes to Hours");
System.out.println("Enter ur choice");
choice=s.nextInt();
switch(choice)
{
case 1:
{
c.dollartorupee();
break;
}
case 2:
{
c.rupeetodollar();
break;
}
case 3:
{
c.eurotorupee();
break;
}
case 4:
{
c.rupeetoeuro();
break;
}
case 5:
{c.yentorupee();
break;}
case 6 :
{
c.rupeetoyen();
break;
}
case 7  :
{
d.mtokm();
break;
}
case 8  :
{
d.kmtom();
break;
}
case 9  :
{
d.milestokm();
break;
}
case 10  :
{
d.kmtomiles();
break;
}
case 11 :
{
t.hourstominutes();
break;
}
case 12 :
{
t.hourstoseconds();
break;
}
case 13 :
{
t.secondstohours();
break;
}
case 14 :
{
t.minutestohours();
break;
}}
System.out.println("Enter 0 to  quit and 1 to continue ");
ch=s.nextInt();
}while(ch==1);
}
}

Output:

Result:

Thus the java application to implement currency converter, distance converter and time converter was implemented and executed successfully.

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