AppletTalk.com Java discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Simple FOR LOOP          AppletTalk.com Forum Index -> Java Help View previous topic :: View next topic   Author Message Sonia Guest Posted: Sun Nov 23, 2003 2:34 am    Post subject: Simple FOR LOOP Sorry, my posts are not descriptive I guess.. What I am trying to do is to get the histogram below. But the code does not produce that. Please let me know how can I fix it so I can achieve the figure below. Thank You (C) ********** ********* ******** ******* ****** ***** **** *** ** * import javax.swing.JOptionPane; public class Ex0510 { public static void main(String args[]) { int column=0; String output=""; for(int row = 1; row < 11; row++) { // output += " * "; for (column = 1; column < 11; column++) { if (column >row) output += " * "; else if (row >=column) output +=" "; } output +="n"; } JOptionPane.showMessageDialog(null, output, "Printing *s", JOptionPane.INFORMATION_MESSAGE); System.exit(0); } } Back to top Anthony Borla Guest Posted: Sun Nov 23, 2003 5:10 am    Post subject: Re: Simple FOR LOOP "Sonia" <smach02 (AT) hotmail (DOT) com> wrote Quote: Sorry, my posts are not descriptive I guess.. What I am trying to do is to get the histogram below. But the code does not produce that. Please let me know how can I fix it so I can achieve the figure below. Thank You You can obtain all four variations [(A) through (D)] of the 'triangle' shapes by varying the 'if' test conditions made in your inner loop: for (int row = 1; row < TOTALROWS; row++) { for (column = 1; column < TOTALROWS; column++) { if (...) // Append either space or '*' else // Append either space or '*' ... After posting my correction I actually found a simpler test condition for (C), and those for the other shapes are only variations on this. May I suggest two things: * Manually compute the values of 'column' and 'row' to determine the behaviour needed to draw the required shape * Use: System.out.println(output); in place of 'JOptionPane.showMessageDialog' because it will give you a truer indication of the shape being drawn. Sadly, 'JOptionPane.showMessageDialog' will give a misleading representation of the some shapes due to the presence of proportional fonts Since this appears to be a homework assignment, something undertaken for your educational benefit, it is best that you try to complete it by yourself. Some helpful hints have already been provided - the onus is now on you to apply these suggestions and create a workable solution. I hope this helps. Anthony Borla Back to top Sonia Guest Posted: Sun Nov 23, 2003 4:48 pm    Post subject: Re: Simple FOR LOOP "Anthony Borla" <ajborla (AT) bigpond (DOT) com> wrote Quote: "Sonia" <smach02 (AT) hotmail (DOT) com> wrote in message news:rSVvb.7657$6c3.6234 (AT) bignews1 (DOT) bellsouth.net... Sorry, my posts are not descriptive I guess.. What I am trying to do is to get the histogram below. But the code does not produce that. Please let me know how can I fix it so I can achieve the figure below. Thank You You can obtain all four variations [(A) through (D)] of the 'triangle' shapes by varying the 'if' test conditions made in your inner loop: for (int row = 1; row < TOTALROWS; row++) { for (column = 1; column < TOTALROWS; column++) { if (...) // Append either space or '*' else // Append either space or '*' ... After posting my correction I actually found a simpler test condition for (C), and those for the other shapes are only variations on this. May I suggest two things: * Manually compute the values of 'column' and 'row' to determine the behaviour needed to draw the required shape * Use: System.out.println(output); in place of 'JOptionPane.showMessageDialog' because it will give you a truer indication of the shape being drawn. Sadly, 'JOptionPane.showMessageDialog' will give a misleading representation of the some shapes due to the presence of proportional fonts Since this appears to be a homework assignment, something undertaken for your educational benefit, it is best that you try to complete it by yourself. Some helpful hints have already been provided - the onus is now on you to apply these suggestions and create a workable solution. I hope this helps. Anthony Borla Thanks Anthony, That hells a lot. As a matter of fact I was trying to figure out why the figures were a bit "crooked" when they were displayed. Like you've said I believe it was due to the 'JOptionPane.showMessageDialog'. Thank You again, you were a big help. Back to top Sonia Guest Posted: Sun Nov 23, 2003 4:53 pm    Post subject: Re: Simple FOR LOOP - Not Homework "Anthony Borla" <ajborla (AT) bigpond (DOT) com> wrote Quote: "Sonia" <smach02 (AT) hotmail (DOT) com> wrote in message news:rSVvb.7657$6c3.6234 (AT) bignews1 (DOT) bellsouth.net... Sorry, my posts are not descriptive I guess.. What I am trying to do is to get the histogram below. But the code does not produce that. Please let me know how can I fix it so I can achieve the figure below. Thank You You can obtain all four variations [(A) through (D)] of the 'triangle' shapes by varying the 'if' test conditions made in your inner loop: for (int row = 1; row < TOTALROWS; row++) { for (column = 1; column < TOTALROWS; column++) { if (...) // Append either space or '*' else // Append either space or '*' ... After posting my correction I actually found a simpler test condition for (C), and those for the other shapes are only variations on this. May I suggest two things: * Manually compute the values of 'column' and 'row' to determine the behaviour needed to draw the required shape * Use: System.out.println(output); in place of 'JOptionPane.showMessageDialog' because it will give you a truer indication of the shape being drawn. Sadly, 'JOptionPane.showMessageDialog' will give a misleading representation of the some shapes due to the presence of proportional fonts Since this appears to be a homework assignment, something undertaken for your educational benefit, it is best that you try to complete it by yourself. Some helpful hints have already been provided - the onus is now on you to apply these suggestions and create a workable solution. I hope this helps. Anthony Borla Hey Anthony, also, one more comment, these were not homework assignments. I think it would be little late to learn FOR loops that late into the semester Actually I am learning JAVA for myself, I think it will come handy for me both in workplace as well as my schoolwork. I would also like to ask you if you knew any good books for JAVA beginners. Right now I am using DEITEL & DEITEL - JAVA How to Program - I am using 4th edition, I know 5th out is out. Have you had an experience with this book - what did you think of it....Also, any other recommendations as far as books go.. I appreciate it in advance Sonia Back to top Anthony Borla Guest Posted: Sun Nov 23, 2003 8:55 pm    Post subject: Re: Simple FOR LOOP - Not Homework "Sonia" <smach02 (AT) hotmail (DOT) com> wrote Quote: "Anthony Borla" <ajborla (AT) bigpond (DOT) com> wrote in message news:xjXvb.23074$aT.19611 (AT) news-server (DOT) bigpond.net.au... "Sonia" <smach02 (AT) hotmail (DOT) com> wrote in message news:rSVvb.7657$6c3.6234 (AT) bignews1 (DOT) bellsouth.net... Sorry, my posts are not descriptive I guess.. What I am trying to do is to get the histogram below. But the code does not produce that. Please let me know how can I fix it so I can achieve the figure below. Thank You Hey Anthony, also, one more comment, these were not homework assignments. I think it would be little late to learn FOR loops that late into the semester :) Actually I am learning JAVA for myself, I think it will come handy for me both in workplace as well as my schoolwork. I would also like to ask you if you knew any good books for JAVA beginners. Right now I am using DEITEL & DEITEL - JAVA How to Program - I am using 4th edition, I know 5th out is out. Have you had an experience with this book - what did you think of it....Also, any other recommendations as far as books go.. I'm not familiar with this particular beginner / intermediate-level text book, though I do know that their 'How to Program in C++' is quite comprehensive, and generally well regarded, thus would expect their Java offering to be, similarly, of a high quality. I can't offer any text book recommendations, just pointers to online resources: * Java Sun Tutorial(s): http://java.sun.com/docs/books/tutorial/index.html * Bruce Eckel's 'Thinking in Java' * Web sites like: http://mindprod.com/jgloss/jgloss.html I hope this helps. Anthony Borla Back to top David Postill Guest Posted: Sun Nov 23, 2003 8:59 pm    Post subject: Re: Simple FOR LOOP - Not Homework -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 In article <eq6wb.30259$ow5.11766 (AT) bignews2 (DOT) bellsouth.net>, on Sun, 23 Nov 2003 11:53:30 -0500, "Sonia" <smach02 (AT) hotmail (DOT) com> wrote: <snip /> Quote: I would also like to ask you if you knew any good books for JAVA beginners. <snip /> If you don't mind reading books online (or offline on a screen), then you could try the following: Beginner: "Thinking in Java" <http://mindview.net/Books> see <http://mindview.net/Books/TIJ/NiceComments.html> for comments Intermediate/Advanced: "InterfaceDesign" <http://www.artima.com/interfacedesign/contents.html> "Hacking Java" <http://www.wutka.com/hackingjava/> Cheers, <davidp /> - -- David Postill -----BEGIN PGP SIGNATURE----- Version: PGP 8.0.3 - not licensed for commercial use: www.pgp.com Comment: Get key from pgpkeys.mit.edu:11370 iQA/AwUBP8EbaXxp7q1nhFwUEQJDvgCgx0QEepVwrNRetKFoI9hMPXpM6FcAoMY6 rPINw191LPFFb3zkkmnILYRU =fPR2 -----END PGP SIGNATURE----- Back to top Sonia Guest Posted: Sun Nov 23, 2003 10:49 pm    Post subject: Thanks Anthony and David these are good start points for me "David Postill" <david (AT) postill (DOT) org.uk> wrote Quote: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 In article <eq6wb.30259$ow5.11766 (AT) bignews2 (DOT) bellsouth.net>, on Sun, 23 Nov 2003 11:53:30 -0500, "Sonia" [email]smach02 (AT) hotmail (DOT) com[/email]> wrote: snip / | I would also like to ask you if you knew any good books for JAVA beginners. snip / If you don't mind reading books online (or offline on a screen), then you could try the following: Beginner: "Thinking in Java" http://mindview.net/Books> see http://mindview.net/Books/TIJ/NiceComments.html> for comments Intermediate/Advanced: "InterfaceDesign" http://www.artima.com/interfacedesign/contents.html "Hacking Java" http://www.wutka.com/hackingjava/ Cheers, davidp / - -- David Postill -----BEGIN PGP SIGNATURE----- Version: PGP 8.0.3 - not licensed for commercial use: www.pgp.com Comment: Get key from pgpkeys.mit.edu:11370 iQA/AwUBP8EbaXxp7q1nhFwUEQJDvgCgx0QEepVwrNRetKFoI9hMPXpM6FcAoMY6 rPINw191LPFFb3zkkmnILYRU =fPR2 -----END PGP SIGNATURE----- Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         AppletTalk.com Forum Index -> Java Help All times are GMT Page 1 of 1   Jump to: Select a forum Java Newsgroups----------------Java DiscussionsWeb-based java games comp.lang.java 3D Graphics API's for Java Java: Support and criticism Java System Announcements comp.lang.java.api JavaBeans Java and CORBA Java and Databases comp.lang.java.developer Java GUI Toolkits Java Help comp.lang.java.javascript JVM, native methods and hardware comp.lang.java.misc Java Language Programming Security and Java comp.lang.java.setup Java Software Tools comp.lang.java.tech ibm.software.java.linux  Non-English Java Newsgroups----------------Java Language (German)Language Java (Français)Java (Italian)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.