java - Sorting contents of attachments in numerical form in arraylist -

-

i trying non-transformed files in /attachments folder , put in array , sort non-transformed attachment array alphanumerically using java. here code 

// non-transformed files in /attachments folder , put in array  file f = new file("d:\\template_export\\template\\attachments"); arraylist<string> attachmentfiles = new arraylist<string>(arrays.aslist(f.list())); system.out.println("attachmentfiles :" + attachmentfiles);

and need sort following output:

attachmentfiles :[0.gif, 1.gif, 10.gif, 11.gif, 12.gif, 13.gif, 14.gif, 15.gif, 16.gif, 17.gif, 18.gif, 19.gif, 2.gif, 20.gif, 21.gif, 22.gif,  23.gif, 24.gif, 25.gif, 26.gif, 27.gif, 28.gif, 29.gif, 3.gif, 30.html,  31.messages, 32.messages, 4.gif, 5.gif, 6.gif, 7.gif, 8.gif, 9.gif]

i tried below code:

collections.sort(attachmentfiles); for(string counter: attachmentfiles){     system.out.println(counter); }

but it's not getting sorted.

to compare 2 strings of digits of different length if numbers necessary left fill shortest string 0 chars.

so first necessary search first point in both strings. compare positions , fill 0 "shortest" number zeros in following code.

collections.sort(attachmentfiles,new comparator<string>() {     public int compare(string o1, string o2) {          int point1 = o1.indexof('.');          // if no point present assume present last position          if (point1 == -1) {              point1 = o1.length();          }          int point2 = o2.indexof('.');          // if no point present assume present last position          if (point2 == -1) {              point2 = o2.length();          }          if (point1 > point2) {              char[] chars = new char[point1-point2];              arrays.fill(chars, '0');              o2 = new string(chars) + o2;          } else if (point1 < point2) {              char[] chars = new char[point2-point1];              arrays.fill(chars, '0');              o1 = new string(chars) + o1;          }          return o1.compareto(o2);     } });

Comments

Post a Comment

Popular posts from this blog

qt - Using float or double for own QML classes -

-
i've created components , helper methods using c++ , qt used in qml gui. of methods calculate gui elements (size, transformations, scene graph items creation). target arm 32 bit using opengl / eglfs render output. opengl using float , qml using real (defined double ). what should use in c++ do not lose precision? if use qreal ( double ) shouldn't lose precision. if git grep float in qtbase.git , can find out bit more: dist/changes-5.2.0-**************************************************************************** dist/changes-5.2.0-* important behavior changes * dist/changes-5.2.0-**************************************************************************** dist/changes-5.2.0- dist/changes-5.2.0- - qt compiled qreal typedef'ed double on dist/changes-5.2.0: platforms. qreal float on arm chipsets before. guarantees more dist/changes-5.2.0- consistent behavior between platforms qt supports, binary dist/chan...
Read more

Create Outlook appointment via C# .Net -

-
i need create outlook appointment using microsoft.office.interop.outlook , while can work locally on own workstation , works if run web application via server's browser, not work when connect server externally. hence, think might permission issue. i changed application pool identity " localsystem " don't access denied error. unfortunately, doesn't work. the app behaves if appointment created, appointment doesn't appear in outlook. here include file on top of aspx.cs page using outlook = microsoft.office.interop.outlook; here code using pop appointment. outlook.application apptapp = new outlook.application(); outlook.appointmentitem appt = apptapp.createitem(outlook.olitemtype.olappointmentitem) outlook.appointmentitem; appt.subject = txtfirstname.text + " " + txtlastname.text; appt.body = txtcomment.text; appt.alldayevent = false; appt.start = datetime.parse(txtreminderdate.text + " 8:00 am"); appt.end = datetime.p...
Read more

ios - Swift Array Resetting Itself -

-
i have 2 arrays: pointhistory , datehistory . have nstimer , , when timer runs out, action called. in action appending int pointhistory , , current date string datehistory . here timer action: func timeraction() { let steppervalue = int(stepper.value) employee.numberofpoints = steppervalue networking.saveemployee(employee, completion: { (error) -> void in if error != nil { let alert = uialertcontroller(title: "error", message: "there error updating \(self.employee.name)'s points", preferredstyle: .alert) let alertaction = uialertaction(title: "ok", style: .cancel, handler: nil) alert.addaction(alertaction) self.presentviewcontroller(alert, animated: true, completion: nil) } }) var dateformatter = nsdateformatter() dateformatter.dateformat = "mm-dd-yyyy" dateformatter.timezone = nstimezone.localtimezone() var date = nsdate() var ...
Read more