58 lines
1.3 KiB
Java
58 lines
1.3 KiB
Java
|
import java.util.*;
|
||
|
|
/**
|
||
|
|
* Converts any Binary Number to a Hexadecimal Number
|
||
|
|
*
|
||
|
|
* @author Nishita Aggarwal
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public class BinaryToHexadecimal {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This method converts a binary number to
|
||
|
|
* a hexadecimal number.
|
||
|
|
*
|
||
|
|
* @param binary The binary number
|
||
|
|
* @return The hexadecimal number
|
||
|
|
*/
|
||
|
|
static String binToHex(int binary)
|
||
|
|
{
|
||
|
|
//hm to store hexadecimal codes for binary numbers within the range: 0000 to 1111 i.e. for decimal numbers 0 to 15
|
||
|
|
HashMap<Integer,String> hm=new HashMap<>();
|
||
|
|
//String to store hexadecimal code
|
||
|
|
String hex="";
|
||
|
|
int i;
|
||
|
|
for(i=0 ; i<10 ; i++)
|
||
|
|
{
|
||
|
|
hm.put(i, String.valueOf(i));
|
||
|
|
}
|
||
|
|
for(i=10 ; i<16 ; i++) hm.put(i,String.valueOf((char)('A'+i-10)));
|
||
|
|
int currbit;
|
||
|
|
while(binary != 0)
|
||
|
|
{
|
||
|
|
int code4 = 0; //to store decimal equivalent of number formed by 4 decimal digits
|
||
|
|
for(i=0 ; i<4 ; i++)
|
||
|
|
{
|
||
|
|
currbit = binary % 10;
|
||
|
|
binary = binary / 10;
|
||
|
|
code4 += currbit * Math.pow(2, i);
|
||
|
|
}
|
||
|
|
hex= hm.get(code4) + hex;
|
||
|
|
}
|
||
|
|
return hex;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Main method
|
||
|
|
*
|
||
|
|
* @param args Command line arguments
|
||
|
|
*/
|
||
|
|
public static void main(String[] args) {
|
||
|
|
Scanner sc = new Scanner(System.in);
|
||
|
|
System.out.println("Enter binary number:");
|
||
|
|
int binary = sc.nextInt();
|
||
|
|
String hex = binToHex(binary);
|
||
|
|
System.out.println("Hexadecimal Code:" + hex);
|
||
|
|
sc.close();
|
||
|
|
}
|
||
|
|
}
|