Reverse an Array | Java | Program to reverse the contents of an Array

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[@pranavdeshpande3676]

Worked!! I wondered after watching the video that how will it work for odd number of elements in array, but later realized that it does and why it does. Thanks for the video.

[@pravarkunnath3519]

Why does it work with odd array?

[@pranavdeshpande3676]

@@pravarkunnath3519 In odd array there will be left a middle element right! We don't have to touch it, it will stay at its position only even after reversing. Hence It works Hope it helps Enjoy coding

[@ankithareddy4497]

for(int i=a.length-1;i>=0;i--) { System.out.println(a[i]); } you can give like this also simple method to reverse array

[@BTechComputerScience]

Hey there, this is also a good solution, but here all u can do is print in reverse order. Many interviewers won't accept this... they ll ask for an array which has reversed elements of the original array, which can be used for any other operation if needed. For example if the question says - reverse the array and find the index of the largest/smallest number in it. Hence leaning to create a reversed array is also important. 😊

[@MyraaKaul-o1v]

I saw your comment, after I posted mine... yeah , I agree, for loop is way more simpler

[@EarthWildEchoes]

Great explanation, Thank you!

[@badineedinarendra9912]

very nice explanation sir☺☺💎

[@paul5007]

its always the indian guy Thank you

[@BTechComputerScience]

Hehe

[@Gamuss12345]

they are the Best!!

[@rohitshinde7518]

Very helpful Thank you boss

[@justinbabu8473]

Superb🎉

[@priyansh.u]

Thank you so much🙏

[@hannanhub1717]

thanks bro..i could not understand swapping part

[@BTechComputerScience]

See my swapping video😊

[@SuryaSurya-zl4ok]

Then wht will be the given input is in odd number

[@mohammadshahid5538]

Make video on finding diagonal and indenity matrix

[@MyraaKaul-o1v]

int a[] = {1,2,3,4,5,6,7}; for(int i=a.length-1;i>=0;i--) { System.out.println(a[i]); } This will work as well!!!

[@sagardarade]

Perfect✅

[@gayathridhana1000]

Thank you

[@Sulakshit]

Bro what if it's not arranged in ascending or descending order ?

[@BTechComputerScience]

It doesn't matter, it ll work😊

[@AdityaSaini5654rdgfd]

what if number of inputs is odd

[@sarankarthic5772]

This code doesn't work if there are duplicates in array

[@happyteen7195]

it works

[@aasimkhan271]

why using j=a.lenght-1 ??

[@prathameshshaniware2377]

Because the index of the array starts form 0, to access last index of the array you have to set array.lenght - 1.

[@kartikpaul3161]

Uspe tum 5 bhi likh sakte ho

[@harishkumarreddy1999]

@@kartikpaul3161what if you don’t know the length of an array?

[@naveenkumar6768]

a.length - it is used to find the length of one particular array, here the array name is a, so we put a.length and the reason for a.length-1 is simple we just need the index to its common to do -1 with the length of that particular array, hope it's useful

[@thakursclub6432]

Because the length of the array is 6 but the last index is 5 . So we did length-1

[@pablopronsky7364]

you are the beast

[@GamerRohit713]

good work bro :) can you use better equipment for audio it is not audible and voice is not clear

[@BTechComputerScience]

Sure bro, thanks for letting me know

[@HNTAutumnleaf]

Nice video! But can you do it in recursive?😁

[@BTechComputerScience]

I should give it a try 🤔

[@zuhaibabid12]

Thnk uh sr but ...ur sop is wrong due to in error plzz expln sr

[@yesitsme5948]

Error vasthundhi bro Last lo sop lo (array.to string (a));. ???

[@BTechComputerScience]

Arrays.toString(a)

[@Notfound.5019]

you need to import import java.util.Arrays;

[@sanskar2404]

​@@BTechComputerSciencewhy we use of it....we can write any other thing instead of it?

[@ashutoshrai2717]

Why in last array.tostring ?

[@mafia53042]

it is a predefined method that shows arrays in a string format and similarly for 2d arrays we use arrays.deepToString method for output

[@rubencherukuri91]

Please explain" reverse string"

[@khushwindeshmukh6036]

Printing statement me Jo Likha vo samja nhi

[@mohammadshahid5538]

Make a video on binary search

[@BTechComputerScience]

I have a binary search video on my channel 🙃

[@mohammadshahid5538]

@@BTechComputerScience ok I will check ✅

[@unnatigupta1112]

👌👌👌👌👌👌

[@asifmallik3742]

Error code .

[@lofiboy7866]

Time complexity is O(N) ? Na

[@23mechnikilkannak59]

Nice but we can't see your code

[@gollarama2559]

Tell me reverse string bro

[@vaishnavinannuru1018]

Bro getting errors

[@BTechComputerScience]

Can u share ur code?

[@ashwinpoudel6909]

@@BTechComputerScience i am also getting error

[@yogeshchoudhary6839]

100/100

[@Jobupdates29]

thank you