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Move all zeroes to the end of Array

 Ex:-

[ 1, 9, 8, 4, 0, 0, 2, 7, 0, 6, 0, 9 ]     ======>     [ 1, 9, 8, 4, 2, 7, 6, 9, 0, 0, 0, 0 ]


Java

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 public class ArrayZero{
     public static void main(String []args){
        int[] arr = { 1, 9, 8, 4, 0, 0, 2, 7, 0, 6, 0, 9 };
        int[] result = moveZeroesToEnd(arr);
        for(int x: result)
            System.out.print(x+" ");
     }
     public static int[] moveZeroesToEnd(int[] arr){
         int count = 0;
         for(int i=0; i<arr.length; i++)
             if(arr[i]!=0)
                arr[count++] = arr[i];
         
         while(count<arr.length)
            arr[count++] = 0;
         return arr;
     }
 }

Python


arr = [1, 9, 8, 4, 0, 0, 2, 7, 0, 6, 0, 9]
result = [None]*len(arr)
count = 0
for i in range(len(arr)):
    if arr[i]!=0:
        arr[count] = arr[i]
        count += 1

while count<len(arr):
    arr[count]=0
    count += 1
print(arr)

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