Digital Unit Converter advanced Java programming source code

Digital Unit Converter in Java:

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

  1. INCHES
  2. FEET
  3. MILES
  4. MILLIMETERS
  5. CENTIMETERS
  6. METERS
  7. KILOMETERS
        
        import java.util.Scanner;

        public class addBook {
        
            public static void main(String[] args) {
                {
                    Scanner in = new Scanner(System.in);
        
                    System.out.println("Enter the Unit which want to Convert from:");
                    System.out.println("inch , ft , mi , mm , cm , m , km");
                    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);
                }
            }
        }
        
        
         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 



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