AppletTalk.com Java discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Java programming style question          AppletTalk.com Forum Index -> Java Software Tools View previous topic :: View next topic   Author Message David Kerber Guest Posted: Fri May 04, 2007 7:00 pm    Post subject: Java programming style question What is the preferred way of checking for an empty string that I already know is not Null? Is it better (however you define that) to check for .length = 0, or ..equals( "" )? TIA! Dave -- Remove the ns_ from if replying by e-mail (but keep posts in the newsgroups if possible). Back to top Daniel Dyer Guest Posted: Fri May 04, 2007 7:20 pm    Post subject: Re: Java programming style question On Fri, 04 May 2007 15:00:35 +0100, David Kerber <ns_dkerber (AT) ns_WarrenRogersAssociates (DOT) com> wrote: Quote: What is the preferred way of checking for an empty string that I already know is not Null? Is it better (however you define that) to check for .length = 0, or .equals( "" )? I don't think it really matters, as long as you don't use ==. IntelliJ IDEA suggests using .length() for performance reasons, but I doubt it would make any noticeable difference in most cases. Dan. -- Daniel Dyer http://www.uncommons.org Back to top David Kerber Guest Posted: Fri May 04, 2007 7:39 pm    Post subject: Re: Java programming style question In article <op.trs3fvbv8kxvgr (AT) cgl0656 (DOT) chaucer.co.uk>, "Daniel Dyer" <"You don't need it"> says... Quote: On Fri, 04 May 2007 15:00:35 +0100, David Kerber ns_dkerber (AT) ns_WarrenRogersAssociates (DOT) com> wrote: What is the preferred way of checking for an empty string that I already know is not Null? Is it better (however you define that) to check for .length = 0, or .equals( "" )? I don't think it really matters, as long as you don't use ==. IntelliJ Yeah, I already learned that lesson :-D Quote: IDEA suggests using .length() for performance reasons, but I doubt it would make any noticeable difference in most cases. That's kind of what I figured; thanks! ..... -- Remove the ns_ from if replying by e-mail (but keep posts in the newsgroups if possible). Back to top Mike Guest Posted: Fri May 04, 2007 9:00 pm    Post subject: Re: Java programming style question On May 4, 3:00 pm, David Kerber <ns_dkerber (AT) ns_WarrenRogersAssociates (DOT) com> wrote: Quote: What is the preferred way of checking for an empty string that I already know is not Null? Is it better (however you define that) to check for .length = 0, or .equals( "" )? TIA! Dave -- Remove the ns_ from if replying by e-mail (but keep posts in the newsgroups if possible). As of JDK 6, the String class now has an "isEmpty" method that returns true if the length is zero. So I'd say use "isEmpty" if on JDK 6, or otherwise check the length. Back to top David Kerber Guest Posted: Sat May 05, 2007 7:08 am    Post subject: Re: Java programming style question In article <1178294413.418046.7710 (AT) n76g2000hsh (DOT) googlegroups.com>, mike.mkaufman (AT) googlemail (DOT) com says... Quote: On May 4, 3:00 pm, David Kerber ns_dkerber (AT) ns_WarrenRogersAssociates (DOT) com> wrote: What is the preferred way of checking for an empty string that I already know is not Null? Is it better (however you define that) to check for .length = 0, or .equals( "" )? TIA! Dave -- Remove the ns_ from if replying by e-mail (but keep posts in the newsgroups if possible). As of JDK 6, the String class now has an "isEmpty" method that returns true if the length is zero. So I'd say use "isEmpty" if on JDK 6, or otherwise check the length. Yes, I'm using 1.5, so that's what I'll use. Thanks for the comments, guys! -- Remove the ns_ from if replying by e-mail (but keep posts in the newsgroups if possible). Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         AppletTalk.com Forum Index -> Java Software Tools 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.