java - Implementation of switch case for check box -

-

is there way implement switch case checkbox?

example: have 4 checkboxes, if selected 2 checkboxes, how trigger case output want?

 double exam = 0.0, assign = 0.0, quiz = 0.0, ct = 0.0;                  if (examchkbox.isselected()) {                 exam = double.parsedouble(examtextfield.gettext());                 }                 if(ctchkbox.isselected()) {                 ct = double.parsedouble(cttextfield.gettext());                     }                 if(quizchkbox.isselected()) {                 quiz = double.parsedouble(quiztextfield.gettext());                     }                 if(asschkbox.isselected()) {                 assign = double.parsedouble(asstextfield.gettext());                     }                 if (!(exam + ct + quiz + assign == 100)) {                 markerrorlbl.settext("total marks must 100");                 }                 else {                    // implementation of code here                 }

design view design view.

let ticked exam , class test, want select value in text field , store marks using switch case. possible?

this thing want i've no idea how implement checkbox.

switch(x)          {             case 1 : = new exam(marks)   ;total+=marks;  break;             case 2 : = new test(marks)   ;total+=marks; break;             case 3 : = new quiz(marks)   ;total+=marks; break;             case 4 : = new assignment(marks) ;total+=marks;break;              }

why want use switch instead of if statements have in code?

since can select 4 checkboxes independently each other, switch not best solution here. have 4 checkboxes, there 2^4 = 16 possible "check patterns":

int pattern = (cb1.isselected() ? 0b0001 : 0)             | (cb2.isselected() ? 0b0010 : 0)             | (cb3.isselected() ? 0b0100 : 0)              | (cb4.isselected() ? 0b1000 : 0);  switch (pattern) {     case 0b0001:         // code when checkbox 1 checked          break;     ...     case 0b0011:         // code when checkbox 1 , checkbox 2 checked         break;     ...     case 0b1011:         // code when checkbox 1, 2 , 4 checked         break;     ... }

if use switch, need 16 cases. in contrast, need 4 if statements:

if (checkbox 1 checked) {     // code when checkbox 1 checked } if (checkbox 2 checked) {     // code when checkbox 2 checked  } ...

note these 4 independent if statements, no else ifs there.


Comments

Post a Comment

Popular posts from this blog

java - Oracle EBS .ClassNotFoundException: oracle.apps.fnd.formsClient.FormsLauncher.class ERROR -

-
i need in configuring java on machine because, when try loading forms, loader goes in circles , gives error: java.lang.classnotfoundexception: oracle.apps.fnd.formsclient.formslauncher.class @ sun.plugin2.applet.applet2classloader.findclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass0(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ java.lang.classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadcode(unknown source) @ sun.plugin2.applet.plugin2manager.createapplet(unknown source) @ sun.plugin2.applet.plugin2manager$appletexecutionrunnable.run (unknown source) @ java.lang.thread.run(unknown source) i have tried re-installing firefox, older versions of java runtime environments, disabling proxy. what missing? application working on other machines. i spent around 100 hours finding s...
Read more

c# - how to use buttonedit in devexpress gridcontrol -

-
Image
i trying create gridcontrol buttonedit in 1 of columns. when user clicks button edit, popups form select product. when selection done on popup, returns datarow selection main grid below. but when column loses focus, value wrote column disappear. here code creates gridcontrol's data , buttonedit's click event. private void frmsiparisnew_load(object sender, eventargs e) { dt = new datatable(); dt.columns.add("malzeme_kodu",typeof(string)); dt.columns.add("malzeme_aciklama", typeof(string)); dt.columns.add("adet", typeof(decimal)); dt.columns.add("birim", typeof(string)); dt.columns.add("fiyat", typeof(decimal)); dt.columns.add("kur", typeof(string)); dt.columns.add("tutar", typeof(decimal)); datarow dr = dt.newrow(); dt.rows.add(dr); gc.datasource = dt; } private void repositoryitembuttoneditmal...
Read more

How do you convert a timestamp into a datetime in python with the correct timezone? -

-
you naively expect work: import pytz datetime import datetime def tz_datetime_from_timestamp(timestamp): """convert timestamp datetime """ tz = pytz.timezone('australia/perth') server_time = datetime.utcnow() delta = tz.utcoffset(server_time) value = datetime.utcfromtimestamp(timestamp).replace(tzinfo=tz) return value + delta print tz_datetime_from_timestamp(1416387060) and convert timestamp 1416387060 wed nov 19 16:51:00 2014 gmt+8:00. ...but not. prints: 2014-11-19 16:51:00+07:43 the timezone of australia/perth not gmt+7:43. it gmt+8:00. unequivocally stated on australian government website http://www.australia.gov.au/about-australia/our-country/time : awst equal coordinated universal time plus 8 hours (utc +8). so, heck pytz pulling 7.43 from? well, turns out pytz pulls data http://www.iana.org/time-zones time zone database, , database states: # western australia # # rule name type in on @...
Read more