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Added Binary To Hexadecimal #314

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Merged
varunu28 merged 1 commit into from
Nov 15, 2017
Merged

Added Binary To Hexadecimal #314

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57 changes: 57 additions & 0 deletions Conversions/BinaryToHexadecimal.java
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Original file line number Diff line number Diff line change
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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();
}
}
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