Banco Do Brasil Agente De Tecnologia Practice Questions - Banco Do Brasil Escriturário - Agente De Tecnologia (TI) Exam

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Consider the following Java Streams pipeline intended to calculate the total transaction volume for approved credit operations: ```java BigDecimal total = transactions.stream() .filter(t -> t.getStatus() == Status.APPROVED) .map(Transaction::getAmount) .reduce(BigDecimal.ZERO, BigDecimal::add); ``` What is the nature of the operations 'filter' and 'reduce' in this pipeline?

'filter' is an intermediate lazy operation, while 'reduce' is a terminal eager operation. 'filter' is a terminal operation, while 'reduce' is an intermediate lazy operation. Both 'filter' and 'reduce' are intermediate lazy operations. Both 'filter' and 'reduce' are terminal eager operations.

Correct Answer:

'filter' is an intermediate lazy operation, while 'reduce' is a terminal eager operation.

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