1. In the file Organization. java - Declare this class is abstract
- The method communicateByTool() is an abstract method.
- The method toString(): return the string as format:
“the organization’s size is” + the value of the size field
2. In the file Colony. java,
- This class extends the Organization class
- The method communicateByTool(): must be overridden to print out the string
as “the colony communicate by sound”
- The method grow(): print out the string as “an annual cycle of growth that begins in
spring”
- The method reproduce():(): print out the string as “Colony can reproduce itself through
a process”
- The method toString(): return the string as format:
“the colony size is” + the value of the size field + “, the colony’s place is” + the value of place field
3. In the file BeeColony. java,
- This class extends the Colony class and implements the Role interface
- The method toString(): return the string as format:
“the colony’s type is ” + the value of the type field+ “, size is about” + the value of the size field + “, andthe place is” + the value of place field
- The createWorker() method: must be overridden to print out the string as
“Worker bees perform all the work of the bees”
4. In the file University. java,
- This class extends the Organization class
- The method communicateByTool(): is overridden to print out the string as “in
the university, people communicate by voice”
- The method enroll(): print out the string as “The registration for enrollment is only valid
when the University has received all enrollment documents and enrollment fees”
- The method educate(): print out the string as “provide education at university standard”
- The method toString(): return the string as format: “encourage the advancement and
development of knowledge”

5. In the file FPTUniversity. java,
- This class extends the University class and implements the Role interface
- The method toString(): return the string as format: “FPTU has four campuses Hanoi, HCM, DaNang, CanTho, QuyNhon”
- The createWorker() method: must be overridden to print out the string as “providing human resources”

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words

Knowing that the central portion of link bd has a uniform cross sectional area of 800 mm2 , determine the magnitude of the load p for which the normal stress in link bd is 50 mpa. (hint: link bd is a two-force member.) ans: p = 62.7 kn

Writing a modular program in visual c++. i am new to this and not sure what i am missing. i am getting the following error: baddate. cpp: in function ‘int main()’: baddate. cpp: 50: 3: error: ‘else’ without a previous ‘if’elsehere are the instructions and code: writing a modular program in c++in this lab, you add the input and output statements to a partially completed c++ program. when completed, the user should be able to enter a year, a month, and a day. the program then determines if the date is valid. valid years are those that are greater than 0, valid months include the values 1 through 12, and valid days include the values 1 through 31.notice that variables have been declared for you. write the simulated housekeeping() function that contains the prompts and input statements to retrieve a year, a month, and a day from the user. include the output statements in the simulated endofjob() function. the format of the output is as follows: month/day/year is a valid date. ormonth/day/year is an invalid date. execute the program entering the following date: month = 5, day = 32, year = 2014. record the output of this program. execute the program entering the following date: month = 9, day = 21, year = 2002. record the output of this /* program name: baddate. cppfunction: this program determines if a date entered by the user is valid. input: interactiveoutput: valid date is printed or user is alerted that an invalid date was entered*/#include bool validatedate(int, int, int); using namespace std; int main(){// declare variablesint year; int month; int day; const int min_year = 0, min_month = 1, max_month = 12, min_day = 1, max_day = 31; bool validdate = true; // this is the work of the housekeeping() method// get the year, then the month, then the daycout< < "enter the year"< > year; cout< < "enter the month"< > month; cout< < "enter the day"< > day; // this is the work of the detailloop() method// check to be sure date is validif(year < = min_year) // invalid yearvaliddate = false; else if (month < min_month || month > max_month) // invalid monthvaliddate = false; else if (day < min_day || day > max_day) // invalid dayvaliddate = false; // this is the work of the endofjob() method// test to see if date is valid and output date and whether it is valid or notif(validdate == true); {// output statementcout<