Digital Unit Converter advanced Java programming source code

Digital Unit Converter in Java:

In Java, a Digital Unit Converter is a type of unit measurement calculator. It is used to convert the given digital unit to another unit. In this tutorial, you will learn how to develop a digital unit converter in the Java program.

File: Digital_Unit_Converter.java

import java.util.Scanner;
public class Digital_Unit_Converter
{
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.println("Enter the Unit which want to Convert from:");
String fromUnit = in.nextLine();
System.out.println("Enter the Unit which want to Convert to: ");
String toUnit = in.nextLine();
UnitConverter from = new UnitConverter(fromUnit);
UnitConverter to = new UnitConverter(toUnit);
System.out.println("Enter the Value of Unit which want to Convert from:");
double val = in.nextDouble();
double meters = from.toMeters(val);
double converted = to.fromMeters(meters);
System.out.println(val + " " + fromUnit + " = " + converted + " " + toUnit);
}
}

 

File: UnitConverter.java

public class UnitConverter
{
static double INCHES = 0.0254001;
static double FEET = 0.3048;
static double MILES = 1609.35;
static double MILLIMETERS = 0.001;
static double CENTIMETERS = 0.01;
static double METERS = 1;
static double KILOMETERS = 1000;
private double val ,meters ,converted;
String afromUnit;
public UnitConverter(String fromUnit)
{
afromUnit = fromUnit;
}
public double toMeters(double val)
{
if(afromUnit.equals("inch"))
{
meters = (val*INCHES);
}
else if(afromUnit.equals("ft"))
{
meters = (val*FEET);
}
else if(afromUnit.equals("mi"))
{
meters = (val*MILES);
}
else if(afromUnit.equals("mm"))
{
meters = (val*MILLIMETERS);
}
else if(afromUnit.equals("cm"))
{
meters = (val*CENTIMETERS);
}
else if(afromUnit.equals("m"))
{
meters = (val*METERS);
}
else if(afromUnit.equals("km"))
{
meters = (val*KILOMETERS);
}
return meters;
}
public double fromMeters(double meters)
{
if(afromUnit.equals("inch"))
{
converted = Math.round(meters*39.369923740457715);
}
else if(afromUnit.equals("ft"))
{
converted = Math.round(meters*3.280839895013123);
}
else if(afromUnit.equals("mi"))
{
converted = Math.round(meters*1609.34);
}
else if(afromUnit.equals("mm"))
{
converted = Math.round(meters*1000);
}
else if(afromUnit.equals("cm"))
{
converted = Math.round(meters*100);
}
else if(afromUnit.equals("m"))
{
converted = Math.round(meters*1);;
}
else if(afromUnit.equals("km"))
{
converted = Math.round(meters*0.001);
}
return converted;
}
}

 

Output-1:

Output-2:

Output-3: