List<String> deptNamesList = empList.stream() .map(emp -> emp.getDepartmentName()).collect(Collectors.toList());

Separate odd and even numbers in ... elements from a list using Java 8 streams · Write a Java 8 program to remove duplicate elements from a list using the stream API ......

September 20, 2024 - int secondLargestNumber = integerList.stream() .sorted(Comparator.reverseOrder()) .skip(1) .findFirst() .get() System.out.println("Second largest number: " + secondLargestNumber); ... int[] arr1 = { 3, 4, 1, 6, 7, 0 }; int[] arr2 = { 8, 4, 3, 9, 5, 1, 6, 7, 2 }; // Copy second array into the list to check if the element is present in O(1) time List<Integer> tempList = new ArrayList<>(); for (int i : arr2) tempList.add(i); Arrays.stream(arr1) .filter(tempList::contains) .forEach(i -> System.out.print(i + " "));

December 28, 2024 - List<Integer> numbers = ...rs.toList()); System.out.println(result); // Output: [4, 5] Question: Find the longest word in a sentence using Streams....

Since more and more of my readers are asking about Java 8 interview questions to me, I have started a series where I take one or two topics and share 15 to 20 interview questions. This is the second part of that series, in the first part, I have shared lambda expressions interview questions, and today we'll see some Stream API and Functional programming interview questions.

August 29, 2025 - 2. How do you find frequency of each character in a string using Java 8 streams ?

August 15, 2024 - Java 8 Stream API Commonly Asked Interview Questions Java Streams can be used to process a series of components and are essentially a pipeline of aggregating operations. In this article, I have …

March 6, 2025 - Hi JavaGuru, can you please tell me, i have employee list of objects, how find the employee service based on the employee doj year using java stream api

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April 22, 2024 - Stream API is another important enhancement from Java 8 and probably the next most important API after the Java Collection framework. It actually works nicely with Java collections and you will feel like it's part of Collections itself. Now, let's see some questions from Java 8's Stream API 11.

import java.util.*; import ... -> s.startsWith("1")) .forEach(System.out::println); } } Output: 10, 15 Q3 How to find duplicate elements in a given integers list in java using Stream functions?...

September 27, 2024 - Skilled in project planning, execution, and agile methodologies. Strong communicator with a focus on delivering high-quality, scalable software solutions. ... Find out all even and odd numbers from a given list of integers using streams.

May 20, 2025 - In this tutorial, I will be sharing the top Java 8 coding and programming interview questions and answers. I have only used Stream API functions to solve the below questions.

July 14, 2025 - Almost there... just a few more seconds

April 13, 2024 - Q. Check if a list of integers contains a prime number using Java streams: public boolean isPrime(int number) { if (number <= 1) { return false; } for (int i = 2; i <= Math.sqrt(number); i++) { if (number % i == 0) { return false; } } return ...

August 21, 2025 - For more details, refer to this article: Lambda Expressions in Java 8 · Stream API is introduced in Java 8 and it is used to process collections of objects with the functional style of coding using the lambda expression.

May 1, 2025 - In order to retrieve values from a Set using Java 8, we can use Stream API of Java 8. Moreover, we must create a Stream from the Set and then iterate the Stream. For example, below code demonstrates the concept.

August 28, 2023 - Java 8 — Real-Time Coding Interview Questions and Answers As I have already shared the Java 8 Coding and Programming Interview Questions and Answers and questions on Stream API in Java 8 Stream API …

May 25, 2025 - public Map<String, Optional<Employee>> highestPaid(List<Employee> employeeList){ return employeeList.stream().collect(Collectors.groupingBy(Employee::getDeptName, Collectors.maxBy(Comparator.comparing(Employee::getSalary)))); } 8.