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Subgoals

Section 10.5 WrClasses-WE2-P2

Subgoals for Writing a Class.

  1. Name it
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  2. Differentiate class-level static vs. instance/object-level variables
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  3. Differentiate class-level static vs. instance/object behaviors/methods
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  4. Define instance variables (that you want to be interrelated)
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    1. Name
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    2. Data Type
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    3. private
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  5. Define class variables static as needed
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    1. Name
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    2. Data Type
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    3. public / private / final
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  6. Create constructor (behavior) that creates initial state of object
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    1. Overloaded constructor (with as many parameters)
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    2. public
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    3. Same name as class
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    4. No return type
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    5. Default - no parameters
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    6. Logic - initialize all variables
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    7. Repeat as needed, adding parameters
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  7. Create 1 accessor and 1 mutator behaviors per attribute
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    1. Accessors
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      1. Name is get_<attr_name>
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      2. Public
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      3. Return type same data type as attribute
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      4. No parameters
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      5. Logic - return value
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    2. Mutators
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      1. Name is set_<attr_name>
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      2. Public
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      3. Return type is void
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      4. Parameter is same data type as attribute
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      5. Logic validates input parameter and sets attribute value
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  8. Write toString method
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    1. public
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    2. Returns String
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    3. No parameters
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    4. Logic - convert needed attributes to a format that can be printed
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  9. Write equals method
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    1. public
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    2. Returns boolean
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    3. Parameter - instance of the class
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    4. Logic - compare attributes for equity
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  10. Create additional methods as needed
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Subsection 10.5.1

Exercises Exercises

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