void moveZeros(int[] nums){
	// TWO POINTER APPROACH
	int i = 0;
	for(int j=0; j < nums.length; j++){
		if(nums[j]! = 0){
			nums[i] = nums[j];
			i++;
		}
	}
	//update last terms to 0 after i
	for(int k = i; k < nums.length; k++){
		nums[k]=0;
	}
}