/* Autor: Vilchor G. Perdido
 * Project: DecimalToHexadecimalConverter v.1.0
 * Date: February 14, 2012
 * Website: http://www.eturo.co.cc
 * Email: vgperdido221020@yahoo.com.ph
 */

import java.util.*;

public class DecimalToHexaConverter
{
    public static void main(String[] args)
    {
        Scanner read = new Scanner(System.in);
        int quotient = 0;
        final int BASE = 16;
        String choice = "";
        char sagot = ' ';

        System.out.println("======================================");
        System.out.println("DECIMAL TO HEXADECIMAL CONVERTER PROGRAM");
        System.out.println("=====================================");

        do {
            try {
                System.out.println("Please input DECIMAL number to convert:");
                int whole = read.nextInt();
                int x=0;
                int temp=0;
                int dividend=0;
                char octal[] = new char[10];
                dividend = whole;
                System.out.println("\nThe HEXADECIMAL value is:");

                do 
                {
                    quotient = dividend/BASE;
                    int remainder = (dividend - (quotient*BASE));
                    dividend = quotient;

                    if(remainder==10)
                    {
                        char z = (int)65;
                        System.out.print(z);
                        //octal[x] = z;
                    }
                    else if(remainder==11)
                    {
                        char z = (int)66;
                        //System.out.print(z);
                        octal[x] = z;
                    }
                    else if(remainder==12)
                    {
                        char z = (int)67;
                        //System.out.print(z);
                        octal[x] = z;
                    }
                    else if(remainder==13)
                    {
                        char z = (char)68;
                        //System.out.print(z);
                        octal[x] = z;
                    }
                    else if(remainder==14)
                    {
                        char z = (int)69;
                        //System.out.print(z);
                        octal[x] = z;
                    }
                    else if(remainder==15)
                    {
                        char z = (int)70;
                        //System.out.print(z);
                        octal[x] = z;
                    }
                    else
                    {
                        //System.out.print(remainder);
                        if(remainder == 0 )
                        {
                            char z = (int)48;
                            octal[x]=z;
                            //char z = (char)remainder;
                            //System.out.print(remainder);
                        }
                        else if(remainder == 1 )
                        {
                            char z = (int)49;
                            octal[x]=z;
                            //char z = (char)remainder;
                            //System.out.print(remainder);
                        }
                        else if(remainder == 2 )
                        {
                            char z = (int)50;
                            octal[x]=z;
                        }
                        else if(remainder == 3 )
                        {
                            char z = (int)51;
                            octal[x]=z;
                        }
                        else if(remainder == 4 )
                        {
                            char z = (int)52;
                            octal[x]=z;
                        }
                        else if(remainder == 5 )
                        {
                            char z = (int)53;
                            octal[x]=z;
                        }
                        else if(remainder == 6 )
                        {
                            char z = (int)54;
                            octal[x]=z;
                        }
                        else if(remainder == 7 )
                        {
                            char z = (int)55;
                            octal[x]=z;
                        }
                        else if(remainder == 8 )
                        {
                            char z = (int)56;
                            octal[x]=z;
                        }
                        else if(remainder == 9 )
                        {
                            char z = (int)57;
                            octal[x]=z;
                        }
                    }

                    ++x;

                }while(dividend!=0);

                for (temp = x-1;temp >= 0;temp--)
                {
                    System.out.print(octal[temp]);
                }

            } 
            catch(InputMismatchException e)
            {
                read = new Scanner(System.in);
                System.out.println("=========WARNING MESSAGE!!!==========");
                System.out.println("\tWrong or Incorrect Input");
                System.out.println("=====================================");

            }
            System.out.println("\n\nWhat do you want? Convert again?");
            System.out.println("Press Y or y to continue or any key to quit.");
            System.out.print("Confirm choice:");
            choice = read.next();
            sagot = choice.charAt(0);
            System.out.println("");

        }while(sagot=='Y' || sagot=='y');
        System.out.println("Program terminated.....");
    }
}