What will the following code return<br /> <br /> list.stream().collect(Collectors.groupingBy(ClassA::getElement1,<br /> Collectors.averagingDouble(ClassA::getElement2)));

Interview Questions and Answers

Q1. What will the following code return

list.stream().collect(Collectors.groupingBy(ClassA::getElement1,
Collectors.averagingDouble(ClassA::getElement2)));

Core Java

Ans. Map<DataType1,DataType2> where DataType1 is the data type of element1 ( returned by getelement1 method ) and DataType2 is the data type of element2 ( returned by getElement2 method )

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve java 8 collections java 8 streams}

Related Questions

What are we doing here

list.stream().collect(Collectors.groupingBy(ClassA::getElement1,
Collectors.averagingDouble(ClassA::getelement2)));

Can you explain filter and collectors in java 8 ?

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.