AppletTalk.com Java discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  changing an int value across classes,kind of working :s          AppletTalk.com Forum Index -> Java GUI Toolkits View previous topic :: View next topic   Author Message Dilbert Guest Posted: Fri Nov 14, 2003 10:23 am    Post subject: changing an int value across classes,kind of working :s Hi there, im using 2 classes for my program. base and gui. in base, i have set: int size = 5; and in gui, with the use of a comboBox, i have: if (jComboBox.getSelectedIndex()==2 ) { base.size = 8; } this compiles fine,and also runs fine. The int size ... in my base class effects the way the program runs, and must have a start value. The idea is, the user selects index2 of the comboBox and it changes the int size value from 5 - 8. If i use the comboBox at index2, no errors turn up, yet it just doenst work. Ive tried repaint(); but this didnt work either, anyone got any ideas? Cheers Back to top Dave Guest Posted: Sat Nov 15, 2003 7:39 pm    Post subject: Re: changing an int value across classes,kind of working :s Have you checked in the debugger if the value of your class attribute 'size' is changed to 8 when it should? If this goes allright, the problem must be somewhere else but I have insufficient information about what should happen when it gets assigned value 8 to be of any help. Regards, Dave --------------------------------------------------------------------- Computers, you can't live with them and you can't live without them. --------------------------------------------------------------------- "Dilbert" <HaveNoSpamMail (AT) memail (DOT) com> wrote Quote: Hi there, im using 2 classes for my program. base and gui. in base, i have set: int size = 5; and in gui, with the use of a comboBox, i have: if (jComboBox.getSelectedIndex()==2 ) { base.size = 8; } this compiles fine,and also runs fine. The int size ... in my base class effects the way the program runs, and must have a start value. The idea is, the user selects index2 of the comboBox and it changes the int size value from 5 - 8. If i use the comboBox at index2, no errors turn up, yet it just doenst work. Ive tried repaint(); but this didnt work either, anyone got any ideas? Cheers Back to top kevinc Guest Posted: Sat Nov 15, 2003 8:22 pm    Post subject: Re: changing an int value across classes,kind of working :s Things that I would look at. 1) How are you checking the value of base after the GUI code has changed the base. 2) Are you sure that the base instance that your GUI is changing is the same base instance that you are inspecting after the GUI makes the change. 3) As an aside. NEVER,NEVER,NEVER have a class that publicy exposes it's instance vars. use acessor/modifier method instead. This way. You would be able to tell if a change was made to base.size, by using base.setSize(int someVal){ System.out.println("Im changing my size to " + someVal); } Dave wrote: Quote: Have you checked in the debugger if the value of your class attribute 'size' is changed to 8 when it should? If this goes allright, the problem must be somewhere else but I have insufficient information about what should happen when it gets assigned value 8 to be of any help. Regards, Dave --------------------------------------------------------------------- Computers, you can't live with them and you can't live without them. --------------------------------------------------------------------- "Dilbert" <HaveNoSpamMail (AT) memail (DOT) com> wrote in message news:P22tb.90$FC6.70 (AT) newsfep4-winn (DOT) server.ntli.net... Hi there, im using 2 classes for my program. base and gui. in base, i have set: int size = 5; and in gui, with the use of a comboBox, i have: if (jComboBox.getSelectedIndex()==2 ) { base.size = 8; } this compiles fine,and also runs fine. The int size ... in my base class effects the way the program runs, and must have a start value. The idea is, the user selects index2 of the comboBox and it changes the int size value from 5 - 8. If i use the comboBox at index2, no errors turn up, yet it just doenst work. Ive tried repaint(); but this didnt work either, anyone got any ideas? Cheers Back to top Dilbert Guest Posted: Mon Nov 17, 2003 8:57 pm    Post subject: Re: changing an int value across classes,kind of working :s "kevinc" <kevinc (AT) elp (DOT) rr.com> wrote Quote: Things that I would look at. 1) How are you checking the value of base after the GUI code has changed the base. 2) Are you sure that the base instance that your GUI is changing is the same base instance that you are inspecting after the GUI makes the change. 3) As an aside. NEVER,NEVER,NEVER have a class that publicy exposes it's instance vars. use acessor/modifier method instead. This way. You would be able to tell if a change was made to base.size, by using base.setSize(int someVal){ System.out.println("Im changing my size to " + someVal); } Dave wrote: Have you checked in the debugger if the value of your class attribute 'size' is changed to 8 when it should? If this goes allright, the problem must be somewhere else but I have insufficient information about what should happen when it gets assigned value 8 to be of any help. Regards, Dave --------------------------------------------------------------------- Computers, you can't live with them and you can't live without them. --------------------------------------------------------------------- "Dilbert" <HaveNoSpamMail (AT) memail (DOT) com> wrote in message news:P22tb.90$FC6.70 (AT) newsfep4-winn (DOT) server.ntli.net... Hi there, im using 2 classes for my program. base and gui. in base, i have set: int size = 5; and in gui, with the use of a comboBox, i have: if (jComboBox.getSelectedIndex()==2 ) { base.size = 8; } this compiles fine,and also runs fine. The int size ... in my base class effects the way the program runs, and must have a start value. The idea is, the user selects index2 of the comboBox and it changes the int size value from 5 - 8. If i use the comboBox at index2, no errors turn up, yet it just doenst work. Ive tried repaint(); but this didnt work either, anyone got any ideas? Cheers Thanks for both replies dave and kevin c. In more detail, i know that it works, because once i choose a value from the combo box, and it changes base.size to say 10, nothing happens, but when i reload the applet, via the actual applet program, it changes :S ive tried validate() repaint() adding and removing forms kevinc, in more detail what you were on about, ive been looking at that kind of idea, just not sure how to go about it via 2 classes (base containing all the hard numerical and detailed code, and gui, the front(used for changing the values) Thanks though for any ideas, im sure ill get there sometime :P Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         AppletTalk.com Forum Index -> Java GUI Toolkits 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.