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bookChallenge: Selecting Random Products Within a Category

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Imagine you have a list of products from an online store. Your goal is to group them by category, pick a random product from each group, and display the result.

  1. Group the list of products by category using groupingBy().
  2. For each category (productList), get the list of products using the stream() method and select a random product with findAny().
  3. Check if the Optional contains a value using ifPresent().
  4. If Optional has a value, print the information in the following format: "Category: {category} => {product}".

Lösning

solution.java

solution.java

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Avsnitt 3. Kapitel 11
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bookChallenge: Selecting Random Products Within a Category

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Uppgift

Swipe to start coding

Imagine you have a list of products from an online store. Your goal is to group them by category, pick a random product from each group, and display the result.

  1. Group the list of products by category using groupingBy().
  2. For each category (productList), get the list of products using the stream() method and select a random product with findAny().
  3. Check if the Optional contains a value using ifPresent().
  4. If Optional has a value, print the information in the following format: "Category: {category} => {product}".

Lösning

solution.java

solution.java

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Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

close

Awesome!

Completion rate improved to 2.33
Avsnitt 3. Kapitel 11
single

single

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