Ohio State University Creating and Using a Class Worksheet

You will create a CourseName class and many instances (objects) from this class. You will also display the data from each instance/object.

The CourseName Class

1. the attributes
   1. String major
   2. String number
   3. String complement
2. two constructors
   • one complete with all parameters, one for each attribute
   • one with no parameters
     • the default values should be
       • “IST”
       • “000”
       • “?”
3. a toString() method that will display information about the object
   • you can use the Netbeans automatic builder format
4. The “get/set” methods
   1. The checks below should be done in each set method.
   2. Make sure that you also check it when you create the object in the constructor.
   3. The set method for major
      • All the letters should be upper case. Correct them if they aren’t
      • Get rid of spaces at the beginning or at the end of the input string
      • Check if the major is one of the following list
        • CMPSC, COMM, CYBER, DS, ECON, ENG, IST, MATH, SRA or STAT
        • if it is not correct it to the default value “IST”
   4. The set method for number
      • It has to have 3 digits.
      • Add “0”s to the beginning if it is not.
      • For instance, if the user tries to add a number “1”, correct it to “001”
      • For instance, if the user tries to add a number “25”, correct it to “025”
      • For instance, if the user tries to add a number “”, correct it to “000”
   5. The set method for complement
      • The letters should be upper case. Correct them to upper case if they are not.
      • It should have only one letter
        • If it has more than one letter, , drop any extra letters beyond the first.
        • if it has less than one letter, set it to the default value “?”
      • Get rid of spaces at the beginning or at the end of the input string
      • Check if the complement is one of the following list
        • A, B, C, D, E, H, M, N, S, T, W, or Z
        • if it is not, correct it to the default value “?” (question mark).
        • Remember that you will need to check the input values for the other 2 attributes (which you probably did already)

The app class

1. create CourseName objects with the data below
   1. using the default/no parameter constructor
   2. ds, 111, n
   3. ist, 1, honors
   4. abc,100, N
   5. SRA, 20, “” (no spaces)
   6. Cyber, 101, J
2. display each object using the toString( ) method

Output

The output should be similar to

CourseName{major=IST, number=000, complement=?}
CourseName{major=DS, number=111, complement=N}
CourseName{major=IST, number=001, complement=H}
CourseName{major=IST, number=100, complement=N}
CourseName{major=SRA, number=020, complement=?}
CourseName{major=CYBER, number=101, complement=?}