Forums: » Register « |  Free Tools |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support |
 User Name: Password: Remember me

New Free Tools on Dev Shed!
We're Excited to announce that Dev Shed now has 70 free tools on the site. To learn more, click here!

 Dev Shed Forums Sponsor:
#1
March 29th, 2013, 10:08 PM
 intergalactic
Registered User

Join Date: Mar 2013
Posts: 4
Time spent in forums: 1 h 26 m 17 sec
Reputation Power: 0
Method Problem

i'm trying to print between x and y Harshad number is an integer that is divisible by the sum of its digits. However; the colored part is unreachable code in eclipse.

public void run () {
int x = readInt("Please enter the first number :");
int y = readInt("Please enter the second number: ");

}

public int getDigit(int i) {
int result = 0;
while (true) {
result = i%10;
i /= 10;

}

return result;
}

public void printHarshadNumbers(int x, int y) {

for(int i=x;i<=y;i++) {
if(i%getDigit(i)==0) {
println(i+" is a Harshad number.");
}

}

}

#2
March 29th, 2013, 10:20 PM
 MrFujin
Lord of the Dance

Join Date: Oct 2003
Posts: 3,340
Time spent in forums: 2 Months 2 Weeks 4 Days 16 h 49 m 18 sec
Reputation Power: 1828
The while(true) loop in the getDigit(int) function never stops.

Maybe you can explain a bit further what you want/expect?

Please use code tags when posting code; this will keep the indention and make the code easier to read.

#3
March 29th, 2013, 10:28 PM
 intergalactic
Registered User

Join Date: Mar 2013
Posts: 4
Time spent in forums: 1 h 26 m 17 sec
Reputation Power: 0
Quote:
 Originally Posted by MrFujin The while(true) loop in the getDigit(int) function never stops. Maybe you can explain a bit further what you want/expect? Please use code tags when posting code; this will keep the indention and make the code easier to read.

Firstly, thanks for reply. I want to print Harshad number between integer x and y. A Harshad number is an integer that is divisible by the sum of its digits. My solution is taking digit sum from a method and using it in other method to control that is it harshad number or not.

#4
March 29th, 2013, 10:32 PM
 MrFujin
Lord of the Dance

Join Date: Oct 2003
Posts: 3,340
Time spent in forums: 2 Months 2 Weeks 4 Days 16 h 49 m 18 sec
Reputation Power: 1828
Quote:
 Originally Posted by intergalactic My solution is taking digit sum

Where do you get the sum?

What do you expect from the while(true) loop? That it should run forever as it does now?

#5
March 29th, 2013, 10:38 PM
 intergalactic
Registered User

Join Date: Mar 2013
Posts: 4
Time spent in forums: 1 h 26 m 17 sec
Reputation Power: 0
Quote:
 Originally Posted by MrFujin Where do you get the sum? What do you expect from the while(true) loop? That it should run forever as it does now?

i expect from the loop to get the sum of digits. I know there must be break condition to stop forever run, but i don't know how.

result ++; is in while loop of course.

#6
March 29th, 2013, 10:49 PM
 MrFujin
Lord of the Dance

Join Date: Oct 2003
Posts: 3,340
Time spent in forums: 2 Months 2 Weeks 4 Days 16 h 49 m 18 sec
Reputation Power: 1828
Quote:
 Originally Posted by intergalactic i expect from the loop to get the sum of digits. I know there must be break condition to stop forever run, but i don't know how.

You can have something like this to end the loop:
Code:
```if(condition)
break;```
.

But you have to define what the condition has to be to exit the loop.

Quote:
 Originally Posted by intergalactic result ++; is in while loop of course.

You should try to include all part of the code that is relevant to the question.
Not sure why you use result ++;

#7
March 29th, 2013, 11:01 PM
 intergalactic
Registered User

Join Date: Mar 2013
Posts: 4
Time spent in forums: 1 h 26 m 17 sec
Reputation Power: 0
Quote:
 Originally Posted by MrFujin You can have something like this to end the loop: Code: ```if(condition) break;``` . But you have to define what the condition has to be to exit the loop. You should try to include all part of the code that is relevant to the question. Not sure why you use result ++;

i made some changes.

Code:
`if (i==0) break;`

and

Code:
`result += i%10;`

result ++; was for storage.

Finally, the code works, mucho gracias.

 Viewing: Dev Shed Forums > Programming Languages > Java Help > Method Problem

## Developer Shed Advertisers and Affiliates

 Thread Tools Search this Thread Search this Thread: Advanced Search Display Modes Rate This Thread Linear Mode Rate This Thread: 5 : Excellent 4 : Good 3 : Average 2 : Bad 1 : Terrible

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts vB code is On Smilies are On [IMG] code is On HTML code is Off
 View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox Forum Jump Please select one User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home -------------------- Programming Languages    PHP Development        PHP FAQs and Stickies    Perl Programming        Perl FAQs and Stickies    C Programming        C Programming FAQs and Stickies    Java Help        Java FAQs    Python Programming        Python Programming FAQs    Ruby Programming        Ruby Programming FAQs    Game Development        Game Development FAQs Programming Languages - More    ASP Programming        ASP Programming FAQs    .Net Development        .Net Development FAQs    Visual Basic Programming        Visual Basic Programming FAQs    Software Design        Software Design FAQs    ColdFusion Development        ColdFusion Development FAQs    Delphi Programming        Delphi Programming FAQs    Regex Programming        Regex Programming FAQs    XML Programming        XML Programming FAQs    Other Programming Languages        Other Programming Languages FAQs Web Design    HTML Programming        HTML Programming FAQs    JavaScript Development        JavaScript Development FAQs    CSS Help        CSS Help FAQs    Flash Help        Flash Help FAQs    Photoshop Help        Photoshop Help FAQs    Web Design Help        Web Design Help FAQs    Website Critiques        Website Critiques FAQs    Search Engine Optimization        Search Engine Optimization FAQs Mobile Programming    Mobile Programming        Mobile Programming FAQs    iPhone SDK Development        iPhone SDK Development FAQs    Android Development        Android Development FAQs    BlackBerry Development        BlackBerry Development FAQs Web Site Management    Business Help        Business Help FAQs    Development Software        Development Software FAQs    Scripts        Scripts FAQs Databases    Database Management        Database Management FAQs    DB2 Development        DB2 Development FAQs    MySQL Help        MySQL Help FAQs    PostgreSQL Help        PostgreSQL Help FAQs    Firebird SQL Development        Firebird SQL Development FAQs    MS SQL Development        MS SQL Development FAQs    Oracle Development        Oracle Development FAQs    LDAP Programming        LDAP Programming FAQs System Administration    Mail Server Help        Mail Server Help FAQs    Apache Development        Apache Development FAQs    Security and Cryptography        Security and Cryptography FAQs    Antivirus Protection        Antivirus Protection FAQs    DNS        DNS FAQs    IIS        IIS FAQs    Networking Help        Networking Help FAQs    FTP Help        FTP Help FAQs Operating Systems    BSD Help        BSD Help FAQs    Linux Help        Linux Help FAQs    UNIX Help        UNIX Help FAQs    Windows Help        Windows Help FAQs    Mac Help        Mac Help FAQs Web Hosting    Web Hosting        Web Hosting FAQs    Free Web Hosting        Free Web Hosting FAQs    Web Hosting Requests        Web Hosting Requests FAQs    Web Hosting Offers        Web Hosting Offers FAQs Computer Hardware    Computer Hardware    CPUs        CPUs FAQs    Cooling        Cooling FAQs    Embedded Programming        Embedded Programming FAQs    Motherboards        Motherboards FAQs    Multimedia Hardware        Multimedia Hardware FAQs Other    Dev Shed Lounge        Dev Shed Lounge FAQs    Development Articles        Development Articles FAQs    Beginner Programming        Beginner Programming FAQs    Hire A Programmer        Hire A Programmer FAQs    Project Help Wanted        Project Help Wanted FAQs Latest News Updated Hourly    Technology News    Business News    Science News Forum Information    Forum Rules/Guidelines        Forum Rules/Guidelines FAQs    Forum Announcements        Forum Announcements FAQs    Dev Shed Gaming Center        Go to the Dev Shed Battle Arena        Go to the Dev Shed Arcade Games        Go to the Legend of the Green Dragon    Suggestions & Feedback        Suggestions & Feedback FAQs

 Forums: » Register « |  Free Tools |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support |