Revisiting Pointers: new and delete Keywords in CPP | C++ Tutorials for Beginners #50

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finally reached the 50 th video , lets finish this now

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[@Desireanshu]

You can also add that if we declare the variable like line 6 --> int a = 4, it will allocate the memory in the stack form. If we declare the variable using 'new' keyword like in line 11 --> int *p = new int(40), it will allocate the memory in heap

[@bohotsaaridhop]

So we use new and delete for heap memory allocation only?

[@sukhmandersingh4306]

@@bohotsaaridhopyes

[@dimpleverma1181]

Yes

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@@bohotsaaridhop yes

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[@manavroy7293]

6:24 TIP: We could also initialise thier values like that- int *arr=new int[3]{2,4,8}; cout

[@shashinegative9366]

kaise socha esa bhai..

[@shashinegative9366]

aur bhai last element q nhi delete ho rha

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@@shashinegative9366 bhai aapko pta chla kya???

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Thank you bro ❤️ mai aapke saare C++ ke tutorials follow kr rha hu Since April and merko C# ke course ka be sabri se intazaar hai kyuki mai Unity me programming krna chahta hu

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Alhamdulilah reached half century of the vedio of this playlist .Thanks a lot😍

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yeppp

[@nnasirhussain]

****Remember*** only dynamically allocated variables can be destroyed using delete operator

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@Hamza Kaise ho beta tum aur tere ma

[@sauravmandal5]

5:20- Bhaiya as you said , the value is allocated dynamically , so doesn't we need to free the memory , like you have teached us at mallock / calloc (), - may leads to memory leak.

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Has the c++ course been completed in the whole 74 videos or are some portions still left??KKindly help me in knowing this

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This is the best C++ course I ever came across. Just one thing, would have been really good if you would also have talked about memory allocation in C++ (i.e stack and heap concept) at this point. They have always confused me a lot. Thanks and my best wishes to you.

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Aapki C language tutorial ki video mere bohot kaam aa rhi h Thanks 😊 Pr *JAVA* ka tutorial nhi mil rha h

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Check playlist learn in one video

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Most advanced channel for coding on desi language❤

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Sir, please make a playlist on Python Data Structures and Algorithms.

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Python me nahi hoga😀😀😀😀😀

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@@opmemes2392 We can use any language for data structures and algorithms, no matter it is python or any other language

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Yeah please

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[@mohitsapkal1543]

Sir why after deleting arr we get the value of arr[2] correct, also I tried this by re-running the code and also increasing the size of array. Problem is that after 2 elements, all values are correctly shown....pls clear this confusion :)

[@AadityaSPatil]

I wanted to ask the same question!

[@sandeepkumartiwari8436]

@@AadityaSPatil I also have same problem . If you know the answer please tell me Please.

[@shilpijain9339]

I also have the same problem

[@shaheenkhan868]

Elements are not necessarily removed when you delete[] them. They are just made available to the system for re-use. Accessing them afterwards is not allowed (Undefined Behaviour). If your array had held objects with destructors then delete also causes destructors to be run before making the memory available for re-use

[@vaibhavshinde5520]

Have you tried delete[ ] are instead of delete arr

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[@kumkumbhagya51]

6:14 kyuki vo ek array hai isliye [ ] ye waale brackets use hai

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#Note. Normally in c++ memory allocated in stack. but dynamically allocated memory assign in heap.

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Yes, we want more on c++

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Finally i've reached half century.... OOPs mai bohot maza aagaya abhi tak.... LOooking forward to complete course ASAP

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bhai baki videos mei kitna time laga 50 to 74?

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Sir please make a playlist on Angular

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Plz also make a vedio on aggregation and composition plz

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Bhaiya ek data science pe roadmap ka video banado. Jo apne pseudo Python developer ka bataya tha ek video mein, use thoda aur clearly samjhaiye please.

[@devanshsaxena1585]

What is difference between delete arr and delete [ ] arr ? Both are freeing the memory block

[@sandeepkumartiwari8436]

I think their is no difference between delete arr or delete [ ] arr

[@SAHIL----10]

delete: This is used to free memory allocated with new. It is used for a single object. delete[ ]: This is used to free memory allocated with new[ ]. It is used for arrays.

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finally completed 50 lectures !!!

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[@kunalshahare9041]

thanks bhai

[@mohitpatel7173]

When we use delete operator with array. It not delete the last value that store in the array. In your example the value of array[2] wasn't delete when using delete[]arr. Why?

[@Stolen__spirit]

#everyone i have one doubt why we need dereference operator when we allocate heap memory for an int data type and for array why we don't need dereference operator for retrieving the value? haary bhaiya make a discord group for doubts if possible !!

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Bhai "Java" par kab Playlist bana rahe ho ?

[@saadhassan8813]

Thanks Dr Harry

[@IDK-sk2yj]

superb explanation sir.

[@abdullah_saeed10]

yrr pointers ki tou bht mushkil se samajh aa gyi lekin ab ye new aur delete keywords ko smajhne me kaafi time lage ga

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Sir hr language ki important questions kr wa digiye

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Thanks Harry Bhaiya

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Thnx for the helpful tutorial

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Sir please make the Roadmap for Software Engineer

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Thank you 😊

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Why we are assigning value to the memory like it should be assigned at the run time na? How can it be dynamic if we are assigning it at compile time? #doubt #IfAnyoneCouldHelp

[@hritikworld9944]

Thank you so much for your amazing videos

[@shivanshusingh3449]

I am using the delete operator as shown in the video to delete a dynamically created array but is only deleting the first two elements of the array. Harry bhai please help.

[@crazyduniya128]

yes same confusion

[@meharsulaiman7358]

06:27 one two three Le mein: Dill ko karar aya tuj py hayee pyaar aya pehli pehli baar aya oh yara 😍😍🤣🤣🤦‍♂🤦‍♂

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Thank you, Harry bhai!

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You are my mentor❤

[@DK-dp1pt]

why 3rd array element is not destroyed(arr[2] = 30) ??

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Bhai plz plz reply dena Maine physical E. Le liya tha ab mai 12 mai ho aur mujhe code sikhna hai

[@deepakmurmu7732]

hello harry bhai woh jjoh apne delete arr likha he usse sirf arr ke pehle two elements delete hue par last wala nhi hua, kyun?

[@MahnoorAkhtar-b4f]

Thanks sir...😊

[@kumkumbhagya51]

3:39 vaise humne isme ptr ki value nikaali kyuki a ki value check krne ke liye hum bas

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What is the importance of * in pointers that we are interesting in the syntax

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jahapana tuc great ho

[@jerlinabraham9724]

what is the difference between delete and delete[ ]

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Makes it look so easy ❤️

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Appreciate sir

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thanks

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Harry bhaii "XML" pr video ho jaye!!

[@beastgamer9444]

8:21 why is arr[2] not giving garbage value???

[@sunilkumar-ft3nk]

Bro same doubt . After delete keyword I am able to delete only 2 int numbers. Have you find the answer why?

[@beastgamer9444]

@@sunilkumar-ft3nk no bro

[@sukhmandersingh4306]

@@sunilkumar-ft3nk you don't need to worry about what the array contains after deleting it. Delete keyword just means that the address previously used is now free to use again by other new allocations. If you're deleting the array using delete[] it has been correctly deallocated even if the value in those arrays are correct for now. Don't ever use a deallocated resource as that is undefined behavior.

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not first but your channel is BEST!

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Pleaseee bhaiya make a video on exception handling🙏🙏🙏 Dikkat aarhi hai please

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finally we touched half century😇

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Sir I am getting a error while installing PYAUDIO What to do sir it is saying please built and install port audio first

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Really Loved it 😻

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You are best bhai

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Legends to Woh Hain Jo paper sy aik din pehly 2x py pori playlist Dekh rahy hain

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2 million to go brother

[@BATSARK007]

How did it dereference itself in line 19,20,21 without *?

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congratulations everyone for reaching 50th video

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please sir make tutorials for game devloment with unity in c# please

[@hosterfr1626]

delete arr ; delete arr [ ] ; In dono mein fark kiya hai?

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Te amo hermano

[@GautamKumar-hi2qh]

Which IDE is best for python programming 1. Visual studio code. Or 2.Pycharm Please help

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Anyone, but let's go with VS Code bcoz it has strong community support and it supports multiple languages

[@gamert2525]

Continue Django plz bhai

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Bhai,GVIM editor se CPP ka set up bta de yrr

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Always support you

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Bhai C++ mein STL bhi pdhana 👍👍

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Bhai ek baar bta do java ka complete course ka laoge

[@GauravKumar-dw2ml]

Plzz keep goin in c++

[@Catharsiswitharthritis]

is it because its 64 bit memory space thats why only first two elements of (4 + 4 ) 8 byte were dleted but not the third?