Shift All Zero Elements to Right Side of the Array - Java interview Question

In this video, I have explained how to Shift All Zero Element to Right Side of the Array - Java interview Question.
OR
Shift all non zero elements to left side of the array.
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[@rajatnegi3408]

Naveen Sir, I was asked this question recently. I was searching the logic but saw this video.. Thanks for helping people in the testing community.. you are a true blessing for us.. Thank you

[@SceneSn1ppets]

Just 2 days back I was asked the same question in one of the top MNCs, I did it through arraylist using .add and . remove in one loop

[@meghaagarwal7721]

This series is really really helpful 👍

[@MrPankajchakraborty]

Thanks Naveen, gone through all 40 videos and with most of them learnt something new. Really appreciate your efforts. please keep going and keep growing 👍

[@sanketh768]

Thank you Naveen. Please continue to do these kinds of coding problems

[@amanjotkaur774]

Really appreciate your efforts sir 👍 thanks 😊

[@gowthamrockz]

Thank you, Naveen.

[@chetanurkudkar]

Thanks a lot sir. This trick is very helpful, its very handy in many other array operations too.

[@gopichinthagumpula6481]

Brother keep Doing... It's really helping

[@shankumondal2881]

Naveen , what FONT do you use in eclipse ?

[@sagarshrivastava2325]

Hi Naveen...which tool/device/pad you are using to explain using pen (seems very smooth)...can you please share the details ?

[@prakashbtw678]

Thank you

[@soumyajit443]

Hi Naveen,
I was asked this question "how to Shift All Zero Element to Left Side of the Array" in my last interview. Can you please make a video of the same?

[@vidyabathija9112]

Thank You.

[@pandudamera7211]

Thank you brother

[@appansingharoy491]

Java is fun❤️

[@prakashbtw678]

Please suggest any material to learn solve problems in leet code, hackerrank...

[@storyteller_x]

Hey naveen,
Can you do a program regarding setting the custom date and time and getting the date & Time.
Take a custom class and set the date and get the salary details according to the year of joining.
#interviewquestion

[@rohitsoni2598]

Sir 1 hi dil h kitni baar jeetoge.

[@soumyajit443]

Please share the program for keeping all zeros to the left hand side of the array . This is being asked in interviews

[@subramanianr2744]

Logic for shift left:
int count = 0;
for (int num : a) {
if(num == 0) {
newArray[count]=num;
count++;
}
}
for(int num : a) {
if(num !=0) {
newArray[count]=num;
count++;
}
}

[@healthbeautytips6438]

What will be the time complexity of this programme as we are creating a new array here. Can we achieve it by single array only.

[@naveenautomationlabs]

It will be O(n) only but with extra space. As I am not manipulating the existing array.

[@healthbeautytips6438]

@@naveenautomationlabs thanks Naveen

[@kishorekumar3620]

Hii Naveen ,can you please tell the logic for shift left without out using two new arrays

[@subramanianr2744]

int count = 0;
for (int num : a) {
if(num == 0) {
newArray[count]=num;
count++;
}
}
for(int num : a) {
if(num !=0) {
newArray[count]=num;
count++;
}
}

[@rohitsoni2598]

@@subramanianr2744 one correction
subu subramani
3 hours ago
int count = 0;
for (int num : a) {
if(num == 0) {
newArray[count]=num;
count++;
}
}
you don't need to write newAray[count]=num; bcoz newArray by default is taking 0. Hope it help u

[@anjaliupadhayay9076]

Thank you so much sir