import java.util.Random;

import java.util.Scanner;

class HammingCode $\{$

static void print$($int ar$[])\{$

for $($int i $=1$; i $<$ ar$.$length; i$++)\{$

System.out.print$($ar$[$i$])$;

$\}$

System.out.println$()$;

$\}$

static int$[]$ calculation$($int$[]$ ar$,$ int r$)\{$

for $($int i $=0$; i $<$ r; i$++)\{$

int x $=($int$)$ Math.pow$(2,$ i$)$;

for $($int j $=1$; j $<$ ar$.$length; j$++)\{$

if $((($j $>>$ i$)$ & $1)==1)\{$

if $($x $!=$ j$)$

ar$[$x$]=$ ar$[$x$]^$ ar$[$j$]$;

$\}$

$\}$

System.out.println$("$p$"+$ x $+"="+$ ar$[$x$])$;

$\}$

return ar;

$\}$

static int$[]$ generateCode$($String str$,$ int M$,$ int r$)\{$

int$[]$ ar $=$ new int$[$r $+$ M $+1]$;

int j $=0$;

for $($int i $=1$; i $<$ ar$.$length; i$++)\{$

if $(($Math$.$ceil$($Math$.$log$($i$)/$ Math.log$(2)))==($Math$.$floor$($Math$.$log$($i$)/$ Math.log$(2))))\{$

ar$[$i$]=0$;

$\}$ else $\{$

ar$[$i$]=($int$)($str$.$charAt$($j$)-\text{'}0\text{'})$;

j$++$;

$\}$

$\}$

return ar;

$\}$

public static void main$($String$[]$ args$)\{$

Scanner scanner $=$ new Scanner$($System$.$in$)$;

$//$ Input message from the user

System.out.print$("$Enter Data: $")$;

String str $=$ scanner.nextLine$()$;

int M $=$ str$.$length$()$;

int k $=1$;

$//2^$K$-1>=$ M $+$ K

while $((-1+$ Math.pow$(2,$ k$))<($M $+$ k$))\{$

k$++$;

$\}$

int$[]$ ar $=$ generateCode$($str$,$ M$,$ k$)$;

System.out.println$("$Generated Hamming code $")$;

print$($ar$)$;

$//$ Simulate transmission with random errors

Random random $=$ new Random$()$;

for $($int i $=1$; i $<$ ar$.$length; i$++)\{$

if $($random$.$nextDouble$()<0\mathrm{.}1)\{//$ Simulating $10\%$ error rate $($adjust as needed$)$

ar$[$i$]=1-$ ar$[$i$]$; $//$ Flip the bit

$\}$

$\}$

System.out.println$("$Received Hamming code with errors $")$;

print$($ar$)$;

ar $=$ calculation$($ar$,$ k$)$;

$//$ Calculate error percentage

int errorCount $=0$;

for $($int i $=1$; i $<$ ar$.$length; i$++)\{$

if $($ar$[$i$]!=0)\{$

errorCount$++$;

$\}$

$\}$

double errorPercentage $=($double$)$ errorCount $/($ar$.$length $-1)*100$;

System.out.println$("$Percentage of errors at the receiver: $"+$ errorPercentage $+"\%")$;

scanner.close$()$;

$\}$

$\}....$in this code i want to enter the number of errors from the user thenprint the percentage error at the reciever