TF Quiz: Java 8 Lambdas & Streams

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True/False review on key Java 8 features

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Swati Nikam

India

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TF Quiz: Java 8 Lambdas & StreamsVersion en ligne True/False review on key Java 8 features par Swati Nikam 1 filter() is a terminal operation that immediately executes the stream pipeline. Yes No 2 A lambda expression can be used to implement a functional interface with a single abstract method. Yes No 3 A lambda expression can modify non-final local variables from the enclosing scope. Yes No 4 map() may change the number of elements in the stream. Yes No 5 A method reference can be used wherever a functional interface's method signature matches. Yes No 6 Stream collect() is a terminal operation that returns a collection such as List. Yes No 7 map() transforms each element of a stream and returns a new stream of the transformed elements. Yes No 8 Parallel streams can improve performance for CPU-bound, stateless operations on large data sets. Yes No 9 A stream can be reused after a terminal operation. Yes No 10 A lambda expression can be used to implement a functional interface with more than one abstract method. Yes No

TF Quiz: Java 8 Lambdas & StreamsVersion en ligne

True/False review on key Java 8 features

par Swati Nikam

filter() is a terminal operation that immediately executes the stream pipeline.

Yes

A lambda expression can be used to implement a functional interface with a single abstract method.

Yes

A lambda expression can modify non-final local variables from the enclosing scope.

Yes

map() may change the number of elements in the stream.

Yes

A method reference can be used wherever a functional interface's method signature matches.

Yes

Stream collect() is a terminal operation that returns a collection such as List.

Yes

map() transforms each element of a stream and returns a new stream of the transformed elements.

Yes

Parallel streams can improve performance for CPU-bound, stateless operations on large data sets.

Yes

A stream can be reused after a terminal operation.

Yes

A lambda expression can be used to implement a functional interface with more than one abstract method.

Yes

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TF Quiz: Java 8 Lambdas & Streams

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TF Quiz: Java 8 Lambdas & StreamsVersion en ligne

par Swati Nikam

filter() is a terminal operation that immediately executes the stream pipeline.

A lambda expression can be used to implement a functional interface with a single abstract method.

A lambda expression can modify non-final local variables from the enclosing scope.

map() may change the number of elements in the stream.

A method reference can be used wherever a functional interface's method signature matches.

Stream collect() is a terminal operation that returns a collection such as List.

map() transforms each element of a stream and returns a new stream of the transformed elements.

Parallel streams can improve performance for CPU-bound, stateless operations on large data sets.

A stream can be reused after a terminal operation.

A lambda expression can be used to implement a functional interface with more than one abstract method.

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