validation - java parseInt exceptions not being caught -


i'm trying catch exceptions parseint request same response, if string not parse int, performs code under catch. make simple validation loop, asking them try again each time try leave field without having entered valid int. right throw exceptions in system console not return pre-configured error message , run associated code.

    public static void main(string[] args){     //draw , show gui     jframe gui = new jframe();     gui.settitle("new provider interface");     gui.setdefaultcloseoperation(jframe.exit_on_close);     final jtextfield textid = new jtextfield("providerid ", 20);     final jtextfield textname = new jtextfield("provider name ", 20);     focusgrabber fgid = new focusgrabber(textid);     gui.add(textid);     gui.add(textname);     gui.pack();     gui.setvisible(true); }      textid.addfocuslistener(new focuslistener(){ @override         public void focusgained(focusevent e) {/* */}         @override public void focuslost(focusevent e) {                 if (!e.istemporary()) {                 string  checkid = textid.gettext();                 boolean validid = false;                 if (checkid.isempty()){joptionpane.showmessagedialog(mainframe, "please enter valid id."); fgid.run();}                 else while (validid = false){try {                         string sid = textid.gettext();                         int iid = integer.parseint(sid);                     }catch (exception e1){                         joptionpane.showmessagedialog(mainframe, checkid + "is not valid id. please try again.");                         fgid.run();                     }finally {validid= true;}     }    }    }    }    );

the code in finally always run, if there exception.


Comments

Post a Comment

Popular posts from this blog

jquery - How do you format the date used in the popover widget title of FullCalendar? -

Image
in fullcalendar, how format date used in popover widget title when clicking '+n more'? code: <div class="fc-popover fc-more-popover"> <div class="fc-header fc-widget-header"> <span class="fc-close fc-icon fc-icon-x"></span> <span class="fc-title">tuesday, april 7</span> ... </div> ... </div> you use daypopoverformat that. determines date format of title of popover created eventlimitclick option. must date formatting string. default value "dddd, mmmm d" english , "ll" other languages.
Read more

Bubble Sort Manually a Linked List in Java -

Image
this first question here. trying manually sort linked list of integers in java , can not figure out wrong code. suggestions? don't error, still have output unordered. tried few different ways, nothing worked. appreciate if can me that. public class node { int data; node nextnode; public node(int data) { this.data = data; this.nextnode = null; } public int getdata() { return this.data; } } // node class public class datalinkedlist implements datainterface { private node head; private int size; public datalinkedlist(){ this.head = null; this.size = 0; } public void add(int data) { node node = new node(data); if (head == null) { head = node; } else { node currentnode = head; while(currentnode.nextnode != null) { currentnode = currentnode.nextnode; } currentnode.nextnode = node; ...
Read more

asp.net mvc - SSO between MVCForum and Umbraco7 -

i need integrate sso between mvcforum (forum of company) , umbraco7 (manages cms company). however struggling shared authentication work. tried several ways suggested on other threads still not running expected. here did: 1. in mvcforum (forum.mywebsite.com) 1.1. machine key in web.xml: <machinekey validationkey="the same key umbraco7" decryptionkey="the same key umbraco7" validation="sha1" decryption="aes" /> 1.2. authenticate forms in web.xml <forms name="my-sso-auth" protection="all" path="/" timeout="43200" domain="forum.mywebsite.com" loginurl="/members/logon" enablecrossappredirects="true" /> 2. in umbraco7 (news.mywebsite.com) 2.1. machine key in web.xml: <machinekey validationkey="the same key mvcforum" decryptionkey="the same key mvcforum" validation="sha1" decryption="aes" /> 2.2. a...
Read more