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Aprenda Challenge: Selecting Random Products Within a Category | Terminal Operations in the Stream API
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Challenge: 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}".

Solução

solution.java

solution.java

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Seção 3. Capítulo 11
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book
Challenge: Selecting Random Products Within a Category

Tarefa

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}".

Solução

solution.java

solution.java

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

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Completion rate improved to 2.33

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