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Have students translate between Java Array and ArrayList to highlight the differences between the two.

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  • Note from CS Teaching Tips: Check out Java67’s entry on the differences between Array and ArrayList for more information.

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Tags

  • Java
  • Data Structures
  • Programming Concepts
External Source

Interview with Helen Hu.

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Other Tips By Helen Hu

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Use everyday examples (e.g. egg cartons, seats in a theater) to help students understand 2D arrays.
Emphasize the need to account for the empty case, which is often overlooked and causes errors.
Be on the lookout for loop syntax that belongs to another language when students are learning multiple languages because they sometimes confuse syntax and create hard to spot bugs.
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