Cracking the coding interview || Java streams Coding questions

cracking the coding interview made easy with the help of coding interview questions. This video contains must do coding questions, programming interview questions also subscribe us for daily coding problem.
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Thanks
Java Techies

[@samsonrj5628]

This is very informative and useful. Thanks for the excellent streams questions and solutions.

[@JavaTechies]

Thank you so much for your feedback and support, it motivates me.

[@vikrantharne9345]

one more question to add to list...
que : get all employee having address (is of list type) start with P and having age greater than 22
ans : employees.stream()
.filter(employee -> employee.getAge()>22&&employee.getAddresses().stream()
.anyMatch(adr -> adr.getCity().startsWith("p")))
.forEach(System.out::println);

[@MrSid2279]

Very nice exercise for practice on Streams. Excellent.

[@abhilashpatel6852]

On the spot. Best practical video on this topic so far. Will revisit again and again to refresh my memory.

[@JavaTechies]

Thanks for your support

[@sandeepikaenagaluru8462]

Love you Manasi. You really helping others.

[@JavaTechies]

Thanks

[@anuragpundir1483]

i love you too mansi

[@rexsam3134]

@@anuragpundir1483 ?????

[@ankitmishra9324]

Keep up the good work Mansi and Team , you guys are really helpful in cracking the interviews.

[@JavaTechies]

Thank you sir ji

[@vengateshm2122]

Excellent. We'll organised.

[@Krishnaentertainments7653]

THANKS FOR YOUR VALUABLE INFORMATION ,IT HELP TO GET KNOWLEDGE

[@JavaTechies]

Most welcome, we keep on sharing more valuable information in our whatsapp and telegram groups too.
Feel free to join there of you want.

[@apx1011]

Very very Helpful 👍 Thank you so much.
Keep posting such real time scenarios of coding.

[@vishnuprahladan4152]

It s really helpful. Thanks Java Techies Team.

[@naveenbv1838]

Thanks a lot for your effort and time you have invested to make us understand so clear in simple but effective examples. 🙏

[@JavaTechies]

Thanks

[@manuvashist3464]

Really helpful questions to brush up

[@JavaTechies]

Thank you so much

[@sekhar14301]

Thank you so much.. these examples are enough to crack the java8 for interview questions

[@JavaTechies]

Thank you

[@rajumurugesan6927]

Hi i really happy for this example.please prepare more programming interview questions

[@JavaTechies]

Thank you so much, sure

[@rushikeshgodase8498]

Excellent Questions

[@JavaTechies]

Thank you

[@venkatreddy525]

This is a fantastic list of questions.

[@ajeet382]

You nailed it mansi . very impressive set of questions . keep up the good work

[@JavaTechies]

Thank you so much, I really appreciate your feedback 🙏

[@srikanthlaggeri9325]

Thank you so much. This video gave more clarity on Streams. Can you please make a video on the Design patterns where it is implemented interview point of view .

[@JavaTechies]

Sure

[@manishagarwal1505]

Good tutorial for java streams and lambda.
Though I noticed that you used == for string comparison while we should use .equals something like "Male".equals(x.getGender())

[@JavaTechies]

Thank you

[@ashrafqureshi9333]

Thanks, Looking for such compilation of questions to practise stream. Really helpful 😄

[@JavaTechies]

Thanks

[@saivamsi4811]

Thanks a ton for your hardwork and service...you are really helping a lot in cracking interviews..

[@JavaTechies]

Thanks

[@sreejak6776]

Thankyou so much for the informative questions

[@JavaTechies]

You're welcome 🙏

[@WhiteObama112]

for the question no 12 - I did some changes, here we need the list of names for each department which can be done with only stream like below.
Map namesByDept = employeeList.stream().collect(

Collectors.groupingBy(Employee::getDepartment)

)
.entrySet().stream()
.collect(Collectors.toMap(o -> o.getKey(), o -> o.getValue()
.stream()
.map(m -> m.getName())
.collect(Collectors.toList())
));

[@JavaTechies]

Thanks

[@AmitKumar-we8dm]

bahaut badhiya didi

[@JavaTechies]

Thank you

[@dkvFitness]

Thanks Mansi for sharing your knowledge & Experience ❤️.

[@JavaTechies]

Welcome 🙏

[@imvickie1497]

Excellent

[@JavaTechies]

Thanks

[@rohitkumar-vk4fx]

You people are doing great work 👍👍

[@mdmujahid8968]

Best stream api videoon TH-cam

[@JavaTechies]

Thank you so much

[@nchavva]

Superb

[@flight_of_phoenix]

I appreciate your hard work

[@JavaTechies]

Thanks

[@karanjain24]

Absolutely loved the content, helped me a lot! Thanks 👍🏼

[@JavaTechies]

Thanks

[@basavarajnv1017]

Great work Manasi 👍thanks for the video ✌️

[@JavaTechies]

Thanks

[@pravinppatil2116]

Examples you have taken here are really helpful, Good Work keep it up.
I want you to Correct 1-2 mistakez here while comparing string you have using == operation instead of that we should use equals method.

[@JavaTechies]

Ya, fine, thank you

[@jagadishgouda4496]

Thanks a ton Mansi..Really appreciate you 👏🏻👏🏻

[@JavaTechies]

Thank you

[@dheerajjham3910]

Thanks a lot Java Techies..

[@JavaTechies]

You are welcome

[@srinath710]

This what exactly iam looking for.

[@JavaTechies]

Thanks

[@Anilkumar-reddy]

Thanks Mansi for your extreme efforts, keep it up. we need more videos from you. For the method 8 we can use like these right? Optional min = employeeList.stream().min(Comparator.comparing(Employee :: getYear));

[@priyakoli5572]

Hi Ma'am, First of all Thank you very much for your efforts, its really helpful. wanted to ask one question: in method8 i am getting Optional.empty whereas if i remove either of condition then then o get some result, why so for me?

[@JavaTechies]

I did not get your question, join us on WhatsApp or telegram group, which is totally free, you can share your code and questions, either me or someone will be able to help you. thank you

[@radharanganathan9610]

Vry useful examples
Request u to increase the font size of programs

[@JavaTechies]

Extremely sorry if that's not correctly visible, will take care next time

[@radharanganathan9610]

@@JavaTechies tq

[@start1learn-n171]

TQ...that's helpful

[@Ankitkumar-js3cj]

Great work . Thanks a lot.

[@JavaTechies]

Thanks

[@start1learn-n171]

Tq

[@JavaTechies]

You are welcome

[@naveenvenkatesh3222]

Keep up the good work 👏

[@JavaTechies]

Thanks

[@dellcruzo]

Awesome content 👍

[@JavaTechies]

Thank you DellCruzo

[@hopelesssouldisappointment5121]

just awesome 👍

[@JavaTechies]

Thank you

[@pratikgaurav6631]

Good one mansi and the backend team :)

[@JavaTechies]

Be the team

[@abhilashpatel6852]

But how static method reference to Employee getter methods are working even if they are non-static method?

[@sanchitthai4822]

This is awesome dude, why you stopped making, please make some more

[@JavaTechies]

Thank you buddy, for sure we will add more. Working on something more awesome 😊

[@thiyagarajan9410]

If source code link was added in the description it would be better

[@JavaTechies]

Added

[@priyakoli5572]

Also for method4, what if we have 2 employees with same highest salary? then it displays only 1 person's salary....why so why not 2 if both have same highest salary?

[@JavaTechies]

Is it using findfirst ??

[@neerajrajak6150]

Thanks you so much

[@JavaTechies]

Wc

[@KiranKumar-ud6zz]

👏👏👏👏👍👍👍👍👍

[@vamshikrishnagolla6506]

Tqs a lot !!

[@JavaTechies]

Welcome 🙏

[@brijeshverma7456]

Hi
I have one question where i need to sort based on price. Can you please help
Ques: Using Java8, sort the products in "Electronics" and "Accessories" by attribute "price" in desc order?
public static void sortData() {
List electronics = new ArrayList();
Map map1 = new HashMap();
map1.put("price", "100");
map1.put("name", "Camera");
Map map2 = new HashMap();
map2.put("price", "200");
map2.put("name", "Laptop");
Map map3 = new HashMap();
map3.put("price", "90");
map3.put("name", "WebCam");
electronics.add(map1);
electronics.add(map2);
electronics.add(map3);
// Comparator.comparing() ->Integer.parseInt();
List accessories = new ArrayList();
Map amap1 = new HashMap();
amap1.put("price", "50");
amap1.put("name", "CameraBag");
Map amap2 = new HashMap();
amap2.put("price", "80");
amap2.put("name", "LaptopBag");
Map amap3 = new HashMap();
amap3.put("price", "10");
amap3.put("name", "MousePad");
accessories.add(amap1);
accessories.add(amap2);
accessories.add(amap3);
Map input = new HashMap();
input.put("Electronics", electronics);
input.put("Accessories", accessories);
}

[@kasivundavalli1883]

method4. high salary name is giving only last list name always.. please correct it.

[@joelgeorge1064]

could get the result by this way also employeeList.stream().max(Comparator.comparing(Employee::getSalary);

[@asashish905]

Hi, most of your videos in the description are private. Unable watch. Can you help please?

[@JavaTechies]

You can directly go to my channel and watch, all the visible ones will be public

[@sangitamohanty7919]

Hi , Need one help can u plz help how to get 2nd highest salary of each department

[@simplyarranged]

Where is sir?🌹

[@rahuljain-zw8vx]

cant get the source code, page not opening

[@JavaTechies]

Login and try, it should open

[@rahuljain-zw8vx]

@@JavaTechies got it🥳

[@tanishkaggarwal2846]

Can I get te code for pratice

[@JavaTechies]

Yes, go to our GitHub

[@AHMADRAZAKHANjava]

Pls provide the source code

[@shankararvapally3333]

Can you please share github link?

[@JavaTechies]

Posted on our website: javatechiess.wordpress.com/2021/06/02/cracking-the-coding-interview-java-streams-coding-questions/

[@viswanathperada5956]

@@JavaTechies couldn't find the githib link in the site. Can you please add it under the video description section. Thanks in advance. Nice content extremely helpful. Awaiting for more concepts and videos.

[@girish44444]

If there is more than 1 highest paid employee then it will give wrong result I think? For that :
empList.stream()
.collect(Collectors.groupingBy(Employee::getSalary, TreeMap::new, Collectors.toList()))
.lastEntry() // for lowest salary you should use firstEntry;
.getValue().forEach(entry -> System.out.println("Name : "+entry.getName() + " , "+ "Salary : "+ entry.getSalary()));

[@JavaTechies]

Thanks