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Treehouse

Java Arrays Course (How To)

via Treehouse

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Overview

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About this Course

Arrays are a container object that allow you store many values of the same type in a single variable

What you'll learn

  • Creating Arrays
  • Looping
  • Sorting
  • Varargs

Syllabus

Creation

Learn how to declare and initialize arrays

Chevron 7 steps

  • Meet Arrays

    2:50

  • Declaring Arrays

    4:09

  • Declaration

    5 questions

  • Accessing Items

    4:57

  • Accessing Items

    5 questions

  • Array Literal Shortcut

    3:31

  • Create an array literal

    1 objective

Iteration

Learn various ways of iterating over an array in it's entirety

Chevron 8 steps

  • Enhanced For Loop

    4:37

  • Review Enhanced For Loop

    5 questions

  • Ye Olde Unenhanced For Loop

    9:42

  • Looping Like These Programmers

    1 objective

  • Multidimensional Arrays

    5:34

  • Review Multidimensional Arrays

    5 questions

  • Looping Over 2d Arrays

    6:07

  • Review Looping Over 2D Arrays

    5 questions

Gotchas and Wins

Not everything about arrays can be amazing. Let's look at some difficulties you will encounter

Chevron 6 steps

  • Adding and Removing Items Means Copying

    6:52

  • Sorting

    6:17

  • Copying and Sorting

    5 questions

  • Array Usage in Method Declarations

    8:29

  • i < videos.length

    1:11

  • Wrap up

    7 questions

Taught by

Travis Alstrand

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