56 lines
1.6 KiB
Java
56 lines
1.6 KiB
Java
package Conversions;
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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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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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//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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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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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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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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