Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.

**Example:**

**Input:** [0,1,0,3,12]**Output:** [1,3,12,0,0]

**Note**:

You must do this

**in-place**without making a copy of the array.Minimize the total number of operations.

**Solution:**

```
class Solution {
public void moveZeroes(int[] nums) {
int j = -1;
for (int i = 0; i < nums.length; i++)
{
if (nums[i] != 0)
{
j++;
int temp = nums[i];
nums[i]=nums[j];
nums[j]=temp;
}
}
}
}
```

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