Java 8 Optional Interview Questions and Answers | Optional Class| Code Decode | Part 1 |

[@purvanshrastogi7001]

Amazing content. Thankyou so much , with the help of your content I’ve cracked multiple companies interview, Currently working in Amdocs.

[@rajnishsingh6719]

Great.

[@CodeDecode]

Many congratulations Purvansh🎊🎊🎊🙂🙂. Keep rocking Man 👏👏

[@kaustavmandal7539]

Today is Women's Day and in recent times If I have felt enormous respect and appreciation for women for doing a great quality of work, you would be one of them. So I want to thank you on this Special day for creating such extraordinary content and helping learners to learn in a better way. Personally, I have learned a lot from your videos and still learning. Keep up the good work. My good wishes to the entire Code Decode team.

[@CodeDecode]

This means a lot to us Kaustav. 🙏🙏. We are glad to have you in our code decode family. This is the best comment I have seen so far today. Thanks for making my day 😃😃

[@harishpasala5138]

Thank you so much... i dont know how to express my gratitude, i have cleared Infosys, accenture, Cognizant, Deloitte, brillio having 3 years experience with TCS. Just because of videos i got this. Thanks for this.

[@CodeDecode]

Many congratulations Harish. Well deserved Man. 👏👏🎊🎊🎊🎊keep rocking 🎸🎶🎶🎸🎶🎶

[@nehurane]

Your videos are very helpful in interview preparations. Thanks for sharing and looking forward to many more latest JAVA topics videos.

[@CodeDecode]

Sure Neha we will upload more such videos🙂👍

[@asthagupta2227]

Thank you so much for this video... Looking forward for part 2

[@CodeDecode]

Sure Astha we will do that🙂👍

[@SurajYadav-yd2cu]

Nice video , Just a small point to add , Optionals in java is entirely to notify that a method can return a null or empty value and also to have some ease of null exceptions. We must always avoid to make a local variables having Optionals as its type , it creates over head for the system with an extra wrapping of class , making more work for compilers and GC's. Thus we must know the use case of Optionals Open for discussions ......... Thanks

[@pskroyallife636]

Super ma'am well explanation❤,

[@sowndaryaravi643]

Really you are great❤ Mostly I learn from any videos or blogs, it gives me a basic theoretical knowledge like for a college students/freshers But your videos are educating in a developer point of view Thanks

[@swapnilmishra697]

Excellent Video. Waiting for part 2

[@CodeDecode]

Thanks

[@Burning-Brain]

Awesome example | Real-time scenario | I will definitely suggest this video to my friends.

[@diwakarbabu605]

Clean Explanation . Great Content.

[@CodeDecode]

Thanks Diwakar

[@chaitanyajada9082]

Thank you so much for such a wonderful content, We use Optional classes to check NullpointerExceptions but I have doubt that instead of null check we are converting that data/value as Optional object and we are checking whether the value is there are not and then we are doing rest of the operation its almost similar like doing "NULL" checks so what is the advantage of using Optional on top of NULL checks

[@joshinim.n9863]

Thank you very much. Very clear and practical explanation

[@CodeDecode]

Thanks Joshini 🙂👍

[@HiteshPatel-uy6re]

Excellent Video. Waiting for part 2 get vs getElse

[@CodeDecode]

kzbin.info/aero/PLyHJZXNdCXsdeusn4OM33415DCMQ6sUKy

[@nagireddy1507]

amazing amazing stuff.................. Thank you so much..... pls come with all kind of scenarios... Thanks

[@CodeDecode]

kzbin.info/aero/PLyHJZXNdCXsdeusn4OM33415DCMQ6sUKy

[@CodeDecode]

Thanks Nagi 🙂👍

[@nagireddy1507]

@@CodeDecode i have covered all java 8 features n practice done. Moving forward with spring boot. Thanks a lot.

[@varunshrivastava5455]

Very well organized and relatable content, thanks a lot for your efforts :)

[@CodeDecode]

Thanks Varun 🙂👍

[@abhiramsharma1960]

just subscribed after watching three videos of yours

[@CodeDecode]

Thanks Abhiram 🙂👍

[@mit1696]

Hello Ma'am, I follow code decode channel and your content really very useful and easy to understand the concepts. I am your Fan now😀✌️

[@CodeDecode]

Thanks a lot Man. 🙂🙂. Happy to have you in the code decode family 👍👍🙂🙂

[@vengateshm2122]

As well organised as always and thanks as always.

[@CodeDecode]

Thanks Vengatesh. As consistent n keen to learn as always, 😃keep learning keep shining ⭐✨⭐✨

[@abirchaudhary6359]

amazing explain. please upload the next part

[@CodeDecode]

kzbin.info/aero/PLyHJZXNdCXsfcMboYwGoL6wKAFPxljz5W

[@yogeshdhamne37]

Thank you so much for the videos Ma'm. This helped me a lot in cracking my interviews.🙏

[@CodeDecode]

We are glad Yogesh. Keep learning keep shining ⭐✨⭐✨

[@krishnakumar-qy6qc]

Thank you ma'am, for sharing awesome videos

[@swatikewale5014]

Very helpful videos..Keep doing the great work..I have watched all your videos but I request you to please cover some more interview questions on SpringBoot.

[@CodeDecode]

Sure Swati. We will do that 🙂🙂👍👍

[@kleatech6562]

Please do the second part...a great video Thanks

[@CodeDecode]

Thanks🙂👍

[@AlivHasan]

Very useful session. Thanks !!!

[@CodeDecode]

Thanks Aliv

[@siddharthshinde9630]

Awesome content. Request you to please include the second part as well 👍😎

[@CodeDecode]

Sure Siddharth🙂👍

[@rationalthinker3223]

Excellent Video

[@CodeDecode]

Thanks🙂🙂

[@sauravmaity4681]

thank you so much for this video. i recently faced these questions in one interview. Kindly make a second video on this as well.

[@CodeDecode]

Sure Saurav. Thanks for sharing your experience with us. It will be helpful to us to decide if we are on right path or not. 🙂👍

[@nagvd]

Very good explanation

[@CodeDecode]

Thanks

[@thanipattavan]

Great content mam..thanks fir the efforts

[@CodeDecode]

Thanks

[@subhadipde7636]

Awesome video..Please upload part 2 of optional

[@CodeDecode]

Sure we'll upload it soon

[@sharmarahul17]

Excellent 👍

[@CodeDecode]

Thanks Vicky 🙂👍

[@PoojaKewat96]

Great content Thanks..! Small Suggestion: If the line of code is very big that it is not fully visible in screen, Please break it into 2-3 lines. again thanks.

[@amananand3100]

God Level Content 🗿🗿

[@rajuraj-nk1tk]

Good explanation, do create the next part for orElse() and orElseGet()

[@CodeDecode]

Sure Raju🙂👍

[@ajaykrishna441]

Only because of you i got i placed in 4 companies. In which heighest package is 12lpa

[@CodeDecode]

Many congratulations Ajay 🎊🎊Well deserved Man. Keep learning keep shining⭐✨

[@deepikabansal4107]

very helpful

[@CodeDecode]

thanks deepika

[@amarthyaseshu683]

Waiting for part 2

[@CodeDecode]

Sure will upload soon

[@usha3904]

Please cover advance multithreading interview questions. Thank you for providing such a valuable content

[@CodeDecode]

Sure Usha🙂👍

[@maheshd3506]

I feel multiple times we are checking not null using if condition, instead old fashion is simple to avoid nullpointer

[@CodeDecode]

Agreed Mahesh . I even think Java 8 reduces readability of code. But interviewer won't listen to our views much😊😊. We need to learn them to crack interviews

[@rajesh6818]

Please provide 2nd part also . Tq for 1st part

[@CodeDecode]

Sure Rajesh, we will upload it soon 👍👍

[@rishiraj2548]

Great content! Thanks a lot!

[@CodeDecode]

👍😊

[@nitinkumar154]

What is the benefits of optional anyways we can do the null check (if null the give message and not found status) and if value is not null then return the value with success code. Please explain what benefits we got using optional?

[@CodeDecode]

As per oracle documentation The purpose of Optional is not to replace every single null reference in your codebase but rather to help design better APIs in which-just by reading the signature of a method-users can tell whether to expect an optional value.

[@slowstarter5720]

Could you please provide the url's to access the ppt and code repo(if any available) which will be really helpful for the purpose of referring it

[@realcrikctetgame4475]

Please create more videos on the same types of tocpics

[@CodeDecode]

Sure🙂👍

[@parvaizsajad8200]

Wahhhh

[@CodeDecode]

👍

[@RahulKumar_gr8]

What is the difference here by still using if and else with Optional.isPresent(), rather than the traditional null checks?

[@javasoul4367]

Can u please let me know why do we need of Optional when we can check with if else condition.

[@akashpotdukhe2364]

Please make more videos on optional

[@CodeDecode]

Sure akash we will create more videos on optional

[@nandanhj7053]

Thanks so much

[@CodeDecode]

🙂👍

[@Darshan21Nov]

How are you able to see the data present in data base using STS?? ANY PLUGIN OR WE HAVE TO INSTALL NEW SOFTWARE FROM ECLIPSE MARKET PLACE. PLEASE REPLY.

[@CodeDecode]

We have used dbeaver plugin from eclipse market place

[@Darshan21Nov]

@@CodeDecode thank for the reply. Very nice video. Continue the good work. We will follow.😁

[@aleenajohn7122]

Could you explain the database structure design for a real time project.How to include association also

[@CodeDecode]

Sure🙂👍

[@aleenajohn7122]

@@CodeDecode Thanks ,you are doing an excellent job..Its very helpful for us

[@jomoljohn215]

Can you explain with a example how it differ from simple null value check using if condition.

[@tesb7040]

Thank you for the hard work and best example of Optional. Could you link the source code to help get full picture of the application?

[@HemaLatha-dz4xr]

Waiting for part2 please

[@CodeDecode]

sure we will upload it soon

[@jeromeabril5001]

Thanks for your contents! When will the next microservices topic be uploaded? You stopped at API Gateways. Thanks!

[@maankhurana5814]

Interviewer asked me findById() method and get() method In LTI for 4 + yrs exp

[@amitkale1284]

Can you please make videos on how to explain project architecture in interview

[@CodeDecode]

Sure Amit. We can do that 🙂👍

[@yashvimittal5753]

Thank you for this amazing content. I do have a query on this, why exactly there is the need for Optional if we have to use the isPresent check which is same as null check. Also, we are wrapping the object into a container which will take more memory?

[@Sundharamurali]

Hey Yashvi, Optional has more advantages than just checking null. It has some static methods that can return a default value if the value is null and also can throw custom exceptions. In addition to these, with the help of "Optional.of" method, we can restrict the user from setting a null value. Also if we try to access the nullable Optional object which has a null value, instead of a null pointer exception, we will get "NoSuchElementException" which we have to handle in code.

[@gyvsr]

If v do proper null check that will be fine right? What else v will be getting new/useful stuff here with Optional?

[@natarajansampathkumar2906]

I have a query, If .Of() won't accept Null values means why it's introduced in Optionals, its allows throw NullpointerException (while passing null object)? Purpose of Optionals is to avoid NullpointerException right. can you please clarify?

[@Rockvik332]

Can you make a single video about spring all annotations

[@CodeDecode]

Sure Vikas, we will do that🙂🙂👍👍

[@Anvesh0709]

Please create second part

[@CodeDecode]

Sure, we will create it soon

[@Ravikumar-gj6qw]

why don't u try with ge() and Optional both at a time

[@PiyushSingh-rn9zl]

can you please share you github url for code access related to spring boot and JPA

[@shivamagrawal3954]

Hi mam , it really good but you speak fast catching it te difficult 🙏

[@CodeDecode]

We will try to go slow Shivam. Thanks for observing 🙂👍

[@mrinalsingh5696]

Could you share the code GitHub repo so that we can practise alongside you?

[@hariprasad2697]

Can you please do complete video on hibernate from basics to all topics on hibernate I have a project on it 😔😭😭 please code decode help me

[@CodeDecode]

Sure Hari, do u need end to end tutorial?

[@hariprasad2697]

@@CodeDecode yes i want to cover all topics in it (theory + coding)☺️ thanks code decode

[@CodeDecode]

Ok sure.. We will create a tutorial course on that 👍

[@sanketh768]

this looks like null check itself, didn't understand what value it adds

[@cookies4techies992]

share the code please

[@Divyabharathi-jf3uq]

😂

[@Divyabharathi-jf3uq]

Employee custom object is there and we have to filter only names with Divya with all other custom objects

[@GunjiAshok-c6j]

Madam you are doing Great Job, We Love your effort Madam. Thank You So Much....💌🏩🏩🏩🏩

[@CodeDecode]

Thanks Gunji Ashok 🙂👍

[@krishnakumar-qy6qc]

Thank you ma'am, for sharing awesome videos

[@jasper5016]

Thanks so much

[@CodeDecode]

🙂👍👍