Search Interview Questions |  More than 3000 questions in repository. There are more than 900 unanswered questions. Click here and help us by providing the answer. Have a video suggestion. Click Correct / Improve and please let us know. |
|
|||
|
| ||||
| Core Java - Interview Questions and Answers for 'Java 8 stream' - 3 question(s) found - Order By Rating | ||||
| ||||
| 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 : | ||||
 Discuss Correct / Improve  java 8 collections java 8 streams | ||||
 Related Questions | ||||
 What are we doing herelist.stream().collect(Collectors.groupingBy(ClassA::getElement1, Collectors.averagingDouble(ClassA::getelement2))); | ||||
| Can you explain filter and collectors in java 8 ? | ||||
| Can you explain filter and collectors in java 8 ? | ||||
| ||||
| Ans. We are averaging elements of a collection by element1 grouped by element1 * list is the reference of collection * element1 is the member element returned by getElement1 method of ClassA * element2 is the member element returned by getElement2 method of ClassA | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve java 8 collections java 8 streams collectors | ||||
| Related Questions | ||||
| What will the following code return list.stream().collect(Collectors.groupingBy(ClassA::getElement1, Collectors.averagingDouble(ClassA::getElement2))); | ||||
| Can you explain filter and collectors in java 8 ? | ||||
| Can you explain filter and collectors in java 8 ? | ||||
| ||||
| Ans. Though there are many differences the way internally they both iterates the collections and streams respectively, but the main difference in performance that is achieved by spliterator as it can iterate Streams in Parallel whereas iterator only iterates collections sequentially. | ||||
| Help us improve. Please let us know the company, where you were asked this question : | ||||
| Discuss Correct / Improve java8 java 8 spliterator java 8 streams streams | ||||
| Related Questions | ||||
| Which is better in terms of performance - Iterator or Spliterator ? | ||||
| How can i split a linked list in two parts in java 8? | ||||
