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bookChallenge: Selecting Random Products Within a Category

Tehtävä

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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}".

Ratkaisu

solution.java

solution.java

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Osio 3. Luku 11
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bookChallenge: Selecting Random Products Within a Category

Pyyhkäise näyttääksesi valikon

Tehtävä

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}".

Ratkaisu

solution.java

solution.java

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Oliko kaikki selvää?

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Kiitos palautteestasi!

Osio 3. Luku 11
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