Java 8 Streams programs you must prepare for Java Interviews

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Below are the frequently asked programs during the coding round in java interviews. In this video, I explain the below programs in detail.

Please make sure, you prepare well for the below programs.

1.Write a program to print employee details working in each department

2.Write a program to print employees count working in each department

3.Write a program to print active and inactive employees in the given collection

4.Write a program to print Max/Min employee salary from the given collection

5.Write a program to print the max salary of an employee from each department

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super siva, good keep it up. its 13 years since we met.

venkatesha

Thank you sir for making this video. . To get active and Inactive works in a single Iteration we can use partitionBy() method. Sample Code :, It returns Map<Boolean, List<Employee>> . At the calling place map.get(true) for active and map.get(false) for inactive.. We have n number of ways it is the one of the way.

maheshuma

Great and wonderful example for Stream API....

SandeepKumar-sefd

Wonderful explanation with example. Thank you so much. Will be waiting to see more videos.. 👏🏻👌🏻🙏🏻👍

venkatsam

Thank you for sharing your knowledge with us Sir

lakshmidevilakshmidevi

Thank you please make one more video on Java8 coding questions

Vithal_Nivargi

Very Nice Video. very well Explained. Thank

zuberdiwan

Amazing explanation. Thank You 😊. Could have formatted the code. Few parts of code is missing.

kemparaj

To calculate dept wise statistics like min, max, average we can use following code : empList.stream.collect(Collectors.groupingBy(Employee::getDeptId, Collectors. ; it returns Map<Integer, DoubleSummaryStatistics> . Just for knowledge purpose sharing my thoughts.. Don't take it in another way.

maheshuma

@siva, its very useful for quick review of java 8 streams. Very nice example you taken and explained . 👍 very best and helpful.

riteshchiddarwar

Very helpful videos, make more such java8 programming videos....thanks a lot sir

adityapratapsingh

Nice video.. very nicely explain.. Can you please explain the reducing function example.

abhishekjain

Hi Siva, I tried Lambda expression as input for "Comparator.comparing" It was not working

muchukundareddy

Sir can you answer this select employee where department is technology and location not equal to mumbai..

rajuls

I can request u sir whenever u writing the codes then atleast first explain predefined method apart from that then u can write the code it's request 🙏

pratapjavasingh