ITEC1620 ObjectBased Programming

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ITEC1620Object-Based Programming

• Lecture 12b
• Final Exam Review

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Final Exam

• 5 Questions, 100 marks total, 3 hours
• 1 Building Classes (30 marks)
• 2 References and Object Diagrams (15 marks)
• 3 Structured Programming (15 marks)
• 4 Arrays of Objects (15 marks)
• 5 Object-Based Programming (25 marks)

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Question 1

• Building Classes
• Given API
• Determine fields of class
• Implement a constructor
• Implement a constructor with reuse
• Implement one or two methods

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Building Classes Example

• Fall 2002 final exam question 1
• DigitCode class
• Fields

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Building Classes Example II

• public DigitCode (int first, int second)
• public DigitCode ()

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Building Classes Example III

• public boolean changeCode (int old1, int old2,
  int new1, int new2)

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Question 2

• References and Object Diagrams
• Two classes
• Draw diagrams after declaration and construction
• Draw diagrams after assignments
• Note copying of primitive values and of references

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References and Object Diagrams Example

• Fall 2002 final exam question 2
• // Part 1 draw the object diagrams at this time

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References and Object Diagrams Example II

• // Part 2 draw the object diagrams at this time

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Question 3

• Structured Progamming
• Like question 5/6 on midterm except programming a
  method
• Inputs come from parameters rather than Scanner
• Outputs are returns rather than print

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Structured Programming Example

• Fall 2002 final exam question 5

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Question 4

• Arrays of Objects
• Old finals
• Build a static method that works on an array of
  ints
• New finals
• Build a static method that works on an array of
  objects

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Arrays of Objects Example

• Fall 2002 final exam question 3
• Instead of ints, use AnInts
• public class AnInt
• public int getValue()

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Arrays of Objects Example II

• public static boolean moreOdd (AnInt ar)

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Question 5

• Object-Based Programming
• Given 3 APIs
• Implement two static methods that use instances
  of the 3 classes
• Read APIs carefully to determine available
  functionality
• Develop algorithm to achieve task

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Review Options

• Q1 Tutorial 7 sequence, old finals
• Q2 Tutorial 8, old finals
• Q3 old finals
• Q4 Tutorial 11
• Q5 old finals