Decimal To Binary Algorithm
In computing and electronic systems, binary-coded decimal (BCD) is a class of binary encodings of decimal numbers where each decimal digit is represented by a fixed number of bits, normally four or eight. In byte-oriented systems (i.e. most modern computers), the term unpacked BCD normally imply a full byte for each digit (often including a sign), whereas packed BCD typically encodes two decimal digits within a individual byte by take advantage of the fact that four bits are enough to represent the range 0 to 9.
package Conversions;
import java.util.Scanner;
/**
* This class converts a Decimal number to a Binary number
*
*
*/
class DecimalToBinary {
/**
* Main Method
*
* @param args Command Line Arguments
*/
public static void main(String args[]) {
conventionalConversion();
bitwiseConversion();
}
/**
* This method converts a decimal number
* to a binary number using a conventional
* algorithm.
*/
public static void conventionalConversion() {
int n, b = 0, c = 0, d;
Scanner input = new Scanner(System.in);
System.out.printf("Conventional conversion.%n Enter the decimal number: ");
n = input.nextInt();
while (n != 0) {
d = n % 2;
b = b + d * (int) Math.pow(10, c++);
n /= 2;
} //converting decimal to binary
System.out.println("\tBinary number: " + b);
input.close();
}
/**
* This method converts a decimal number
* to a binary number using a bitwise
* algorithm
*/
public static void bitwiseConversion() {
int n, b = 0, c = 0, d;
Scanner input = new Scanner(System.in);
System.out.printf("Bitwise conversion.%n Enter the decimal number: ");
n = input.nextInt();
while (n != 0) {
d = (n & 1);
b += d * (int) Math.pow(10, c++);
n >>= 1;
}
System.out.println("\tBinary number: " + b);
input.close();
}
}
