#5 Error Handling & NULL Check Operator in Dart || Dart OOP Tutorials For Beginners in Hindi/Urdu

In this lecture i will teach you how to handle exceptions in dart programming using try catch, how to handle null check operator used on a null value and do some practice around the concepts of creating class and objects in dart.
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introduction to oop, roadmap of oop, object oriented programming, dart, tutorials, dart tutorials, dart oop tutorials for beginners, null safety, what is null safety in dart, error handing, try catch, null check operator
00:00 Introduction
00:50 Area class and objects
02:00 Null values & exceptions
04:00 Try & Catch Handle Exception
05:30 How to handle null check operator in Dart
#dart #flutter #oop #dartoop #programming #tutorial #thetechbrother

[@tahiratufail6491]

Disovered your channel for learning flutter so happy to see Pakistani teacher here

[@anilkore4194]

This is really great series. Thanks for it. I really appreciate this.

[@thetechbrotherss]

thanks

[@waizkamboh]

May Allah give you success

[@thetechbrotherss]

ameen

[@syedshabbarraza7858]

Sir bohot faida ho raha hai rooz kuch na kuch naya seekhny ko mil raha hai
Shukriya ❤

[@thetechbrotherss]

Mazy kro

[@loveleshagrahari3875]

thank you very much for creating such content

[@thetechbrotherss]

Do share

[@waizumer-me5qw]

Thanks Sir

[@thetechbrotherss]

thanks

[@FaizanNabi-2001]

which macbook you use and specs and your recommendation for flutter development ?

[@thetechbrotherss]

I am using M1 and recommend M3

[@shanattari8042]

Web Socket per video please

[@thetechbrotherss]

Ok

[@syedahmedshah1274]

3:12 double? width here question marks means that width can be null, but when in the calculating area in thefunction its being assigned to the area of rectangle “ width! “ here exclamation mark represents null check operator (value cant be null here).

[@thetechbrotherss]

i didn't understood your question

[@user-sp8kb3fn6z]

because we already define that the width is nullable(?) but when we use ! that mean the value should not be null

[@shanattari8042]

Sir ios ki build pr proper details step by step with error solves and versions issues and others mobile certificate issues video bna de mujhe build niklni hai please

[@thetechbrotherss]

Ok

[@shahanmalik298]

Aoa Asif taj
Ma aik project bna rha thy us ma mena name ko no name by default value assign ki .3 to 4 name value fetch honay k bad null check error show ho rha thy name wali value pr. Asl ma name wali value database sa null a rhi thi Shahid by default value assign krnay k koi faida nhi. ?? I think best ha

[@thetechbrotherss]

Jb ap database ma data add krty ho tb null na add kro by default value add kro

[@HelloWorld-tx4qn]

with ? We declare that value can be null, but you are saying it can not be null.

[@thetechbrotherss]

You missed understood it, please watch previous video about null safety for better understanding

[@syedshabbarraza7858]

Assalam o Alaikum!
Sir mujyh flutter krty huwe 6 month ho gaye hain or 3rd semester mein hoon!
Kya mujhy in chutiyoon mein Internship ki taraf jana chahiye?
From Lahore..UDEMY SY flutter ka course bhi kr chuka hu 1 Chat App bhi bna chuka hoon

[@thetechbrotherss]

Yes apko job ya internship milte ha kr lo

[@syedshabbarraza7858]

@@thetechbrotherss JAZAKAllah Sir

[@roa976]

sir please har banda acha dimagh nhn rakhta hai per ap thora aram se samjha ya karen sir hum bahot sare consept miss ker date hain qn k samjh hi nhn aty h ap aik aik cheez clear karaya karo sir please sir. koch bigners bilkol mote dimagh wale hote hain jin ko thora detail main samjh aty h, ok sir ap sikhate acha hain per sir thora koprat ok

[@thetechbrotherss]

Yeah sub ma dart course ma sekha chuka hu is liye overview dia ha yahan

[@kumailabbaskumailabbas1924]

May Allah give you success

[@thetechbrotherss]

ameen