arrays - java object oriented programming -

-

first off im new here. , dont know if peoples able me hope can me. thing have java exam object oriented programming , methods , classes , wasnt there when had , received image of exam , have = 0 knowledge java. can basic java code never looked new stuff. have on exam 2 tasks . post exam down below .

task 1. ------------------------------ class student  classvariable (private) lastname, firstname, gender, birthyear  of student  constructor  4 values added constructor.the values in  constructor assigned class variables.  method tostring() data students (the 4 class variables) connected string , stored in variable . form: lastname: muster firstname: max birthyear : 1997 gender: male variable returned mehod.  method outputstudentdata() string method tostring() print out.   task 2. ------------------------------- class schoolclass  classvariable suitable container store school class indefinite number of students (static, array, arraylist ...)  method outputclasslist() every student in classroom index number of container , 4 properties surname, first name, year , gender output (use method outputstudentdata() student class!)  method deletestudent() can enter index number of student you'd delete , student deleted container (see default output)  method classsize() classsize (amount of student in  class) output. (see default output)  method setstudent() can enter last name, first name, gender , birthyear of new student(see default output) new object of class student created. method returns object of class students back.  method main() following menu show up:  do? 0 > exit 1 > create new student , add schoolclass 2 > delete student schoolclass 3 > show classlist 4 > show classsize enter choice :    can enter choice. choice executed. if enter not valid number(not 0 - 4), errormsg appear. programm loop until numeric code 0 choosen. message appears adoption  executed, have chosen. enter not valid number (not 0-4), error message appears, program repeated until numeric code when choosing 0 message appears adoption.

i hope can explain me how works in advance

and please dont think want spoonfeeded. im here learn how it. dont want fail on exam

reticulated spine , gamedroids correct in not question suitable stack overflow. simple google search turns many, many resources available use.

to started, this tutorial should getters, setters, , tostring, , should able use google figure out rest of assignment.


Comments

Post a Comment

Popular posts from this blog

python - TypeError: start must be a integer -

-
i trying draw 5 turtles, getting typeerror on line 25. here code: import turtle wn = turtle.screen() redrose = turtle.turtle() color = input("what background color be?") fillcolor_f = input("what color of rose be?") redrose.hideturtle() redrose.speed(30) redrose.penup() redrose.left(180) redrose.forward(175) redrose.right(90) redrose.forward(30) redrose.right(90) redrose.pendown() def drawrose(red): redrose.color("pink") redrose.fillcolor(fillcolor_f) redrose.fill(true) in range(red): redrose.forward(i) redrose.right(49) in range(5): drawrose(redrose) redrose.penup() redrose.forward(350) redrose.right(144) redrose.pendown() redrose.fill(false) drawrose(50) wn.bgcolor(color) i trying draw 5 roses, produces errors. doing in interactivepython.org. you recursively calling drawrose wrong parameter. on line 23 ( for in range(red): ) expect red integer...
Read more

c# - DevExpress RepositoryItemComboBox BackColor property ignored -

-
i have following code almost works properly; private void cbstatus_drawitem(object sender, listboxdrawitemeventargs e) { string item = e.item string; if (item != null) { switch (item) { case "1": e.appearance.forecolor = color.green; e.appearance.backcolor = color.green; break; case "2": e.appearance.forecolor = color.orange; e.appearance.backcolor = color.orange; break; case "3": e.appearance.forecolor = color.red; e.appearance.backcolor = color.red; break; } } } when dropdown shown, items forecolor correct, backcolor remains whatever backcolor of theme is; i.e. if i've got set dark theme, backcolor dark, cells in gridview, rather being green/orange/red. i've tried setting e.appearance.options.usebackcolor trying set e....
Read more

django - Creating multiple model instances in DRF3 -

-
1) create multiple model instances 1 api call, asked here: how create multiple model instances django rest framework? tried solution named in link, no success. i trying upload multiple files in 1 api call. result: files uploaded (only once overwrote perform_create) 1 instance created (if send 2 files, latter created instance). my code: class fileuploadserializer(serializers.modelserializer): def __init__(self, *args, **kwargs): many = kwargs.pop('many', true) super(fileuploadserializer, self).__init__(many=many, *args, **kwargs) class meta: model = fileupload read_only_fields = ('created', 'datafile', 'owner') class fileuploadviewset(viewsets.modelviewset): queryset = fileupload.objects.all() serializer_class = fileuploadserializer parser_classes = (multipartparser, formparser, ) def perform_create(self, serializer): file_list = self.request.data.getlist('file') ...
Read more