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