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Dr. Thomas Hicks Computer Science Department Trinity University

1320 Principles Of Programming I. Chapter 7-B Array Functions. Dr. Thomas Hicks Computer Science Department Trinity University. 1. 6. Storage Of ActNo (Review). Use arr(0)  To Store ActNo. 6. 0. 7. 5. 2. 4. 3. 0. 5. 2. 1. 1. ActNo . 5. 0. nos. Time

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Dr. Thomas Hicks Computer Science Department Trinity University

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  1. 1320Principles Of Programming I Chapter 7-BArray Functions Dr. Thomas Hicks Computer Science Department Trinity University 1 6

  2. Storage OfActNo (Review)

  3. Use arr(0)  To Store ActNo 6 0 7 5 2 4 3 0 5 2 1 1 ActNo  5 0 nos

  4. Time System.nanoTime

  5. System.nanoTime

  6. arr.drop(n) Return An Array, Or List, With The First N Elements Removed

  7. arr.drop(n) • Explicitly returns an Array, or List, with n elements removed from the front.

  8. arr.init Return An Array, Or List, With The Last Element Removed

  9. arr.init • Explicitly returns an Array, or List, with n elements removed from the rear.

  10. arr.head & arr.first Return The First Element Of The Array Or List

  11. arr.head & arr.first • Explicitly returns the first element in the Array or List.

  12. arr.last Return The Last Element Of The Array Or List

  13. arr.last • Explicitly return the Last Element in the Array or List.

  14. arr.slice(f,l) Return The Array, or List, Beginning With Element f & Continuing To The Element Just Before l

  15. arr.slice(f,l) • Explicitly returns an Array, or List, Beginning With Element f & Continuing To The Element Just Before Element l.

  16. arr.splitAt(n) Return A Tuple Containing Two Arrays  The First Array Contains The First Portion Of The List (Up To, But Not Including Element n)  The Second Array Contains The Items From Element n To The End.

  17. arr.splitAt(n) • Explicitly Return A Tuple Containing Two Arrays  The First Array Contains The First Portion Of The List (Up To, But Not Including Element n) The Second Array Contains The Items From Element n To The End..

  18. arr.take(n) Return The Array, or List, Of n Elements Taken From The Beginning/Left

  19. arr.take(n) • Explicitly Return The Array, or List, Of n Elements Taken From The Beginning/Left • .

  20. arr.takeRight(n) Return The Array, or List, Of n Elements Taken From The End/Right

  21. arr.takeRight(n) • Explicitly Return The Array, or List, Of n Elements Taken From The End/Right • .

  22. arr.contains(n) Return true If n Is In The List Or Array

  23. arr.contains(n) • Explicitly Return trueIf n Is One Of The Data Element Members Of The List Or Array; Otherwise Return false • .

  24. arr.isEmpty Return true If The Array, Or List, Is Empty – Has 0 Data Element Members

  25. arr.isEmpty • Explicitly Return trueReturn true If The Array, Or List, Is Empty – Has 0 Data Element Members; Otherwise Return false • .

  26. arr.nonEmpty Return true If The Array, Or List, Is Empty – Has 0 Data Element Members

  27. arr.nonEmpty • Explicitly Return trueReturn true If The Array, Or List, Is Empty – Has At Least 1, or more, Data Element Members; If Empty, Return false • .

  28. arr.startsWith(arr) Return true If The Array, Or List, Is Starts With The PassedArray

  29. arr.startsWith(arr1) • Explicitly Return true If The Array, Or List, Is Starts With The Passed Array. • .

  30. arr.indexOf(n) Return The Element Subscript If The n Is A Member Of The Array, or List; Return -1 If The Element Is Not In The Array Or List

  31. arr.indexOf(n) • Explicitly Return The Element Subscript If The n Is A Member Of The Array; Return -1If The Element Is Not In The Array.

  32. arr.lastIndexOf(n) Return The Element Subscript If The n Is A Member Of The Array, Or List; Return -1 If The Element Is Not In The Array Or List

  33. arr.lastIndexOf(n) • Explicitly Return The Element Subscript If The n Is A Member Of The Array; Return -1 If The Element Is Not In The Array.

  34. arr.diff(arr1) Return An Array, Or List, Containing Those Elements In arr1, That Are Not In arr.

  35. arr.diff(arr1) • Explicitly Return An Array Containing Those Elements In arr, That Are Not In arr.

  36. arr.reverse Return An Array, Or List, Whose Elements Are In Reverse Order

  37. arr.reverse • Explicitly Return An Array Whose Elements Are In Reverse Order.

  38. Principles Of Programming ICSCI 1320 Dr. Thomas E. Hicks Computer Science DepartmentTrinity University Textbook: An Introduction to Programming with ScalaBy Dr. Mark Lewis Special Thanks To Dr. Mark Lewis For Providing Some Of Text For Use In This Presentation.

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