Perform binary addition and subtraction with a signed binary numbers in Java -


for pure enjoyment , on time, i'm trying learn more binary numbers , assembly. have been local library checking out books in order gain more understanding of binary numbers , addition. didn't know before few weeks back, 1 add binary numbers java. i'm stumbled , have been 2 days on this.

like said i'm trying add binary numbers in addition , subtraction. i'm assuming need parse in order work properly. feel i'm on looking here. missing? helpful.

as of right now, have this:

`import java.util.scanner; public class binary operation { public static void main(string[]args){     scanner keyboard = new scanner(system.in);     boolean keepgoing = true;     string binary1, binary2;     int num1, num2;      system.out.println("scenario: choose (a)dd, (s)ubtract, (e)xit");     char choice = keyboard.next().charat(0);     while(keepgoing){         if (choice == 'a' || choice == 'a'){             system.out.println("enter 8-bit signed binary number: ");              binary1 = keyboard.next();             system.out.println("enter binary number: ");             binary2 = keyboard.next();             num1 = integer.parseint(binary1, 2);             num2 = integer.parseint(binary2, 2);             int sum = num1 + num2;             system.out.println(integer.tobinarystring(sum));         }         else if(choice == 's' || choice == 's'){             system.out.println("enter 8-bit signed binary number: ");             binary1 = keyboard.next();             system.out.println("enter binary number: ");             binary2 = keyboard.next();             num1 = integer.parseint(binary1, 4);             num2 = integer.parseint(binary2, 4);             int difference = num1 - num2;             system.out.println(integer.tobinarystring(difference));         }         else if(choice == 'e' || choice == 'e'){             system.out.println("thank you.");             keepgoing = false;             system.exit(0);         }         if(keepgoing){             system.out.println("choose (a)dd, (s)ubtract, (e)xit");             choice = keyboard.next().charat(0);         }     }

the tobinarystring prints 32-bit unsigned value. need method like.

public static string tosignedbinary(int num) {     return num < 0 ? "-" + long.tobinarystring(-(long) num) : integer.tobinarystring(num); }

Comments

Post a Comment

Popular posts from this blog

javascript - jQuery: Add class depending on URL in the best way -

i have html progress meter: <div class="col-md-3" style="margin-left: -20px;"> <div class="progress-pos active" id="progess-1"> <div class="progress-pos-inner"> login </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-2"> <div class="progress-pos-inner"> scan items </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-3"> <div class="progress-pos-inner"> confirm address </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-4"> <div class="progress-pos-in...
Read more

caching - How to check if a url path exists in the service worker cache -

i need check if particular url path exists in service worker cache. example, suppose url is: /myserviceworker/service?a=110&b=70 this url exists in cache, there many of them different values of , b. now, suppose want refresh of these urls, how can that? i want know how access key values service worker cache. if know key, plan follows: var url = new url(key); if(url.pathname === "\/myserviceworker/service") refetch key but not sure how cache key , in format is. mean, string or url? cache api has match() method returns promise resolving in response object if match or undefined if no match exists. second parameter object can specify ignoresearch not take account url parameters. the ignoresearch option supported firefox ( chrome status here ). in other hand, retrieve cache entries, can use keys() method.
Read more

Redirect to a HTTPS version using .htaccess -

i need modify .htaccess file redirect urls https version without "www". http://example.com --> https://example.com http://www.example.com --> https://example.com https://www.example.com --> https://example.com this how .htaccess file looks like: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^(.*)$ redirect.php?id=$1&page=$2 [qsa,l] what modifications need make .htaccess in order forward https without "www"? it depends on doing current code. looks file called redirect trying display php page seo friendly url. think might confusing people. anyway, need , force https without www, need 1 more rule above. also second rule needs two capture groups in rewriterule test string because wanting 2 different values using $1 , $2 references. rewriteengine on #rediect www non www and/or http https --- combinations. rewritecond %{http_host} !^example\.com [nc,or] rewritecond %{https} !^...
Read more