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.
For example, given nums = 0, 1, 0, 3, 12, after calling your function, nums should be 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.
public void moveZeroes(int[] nums) {
int t = 0;
// 把非0元素移到前面
for (int i = 0; i < nums.length; i ) {
if (nums[i] != 0) {
nums[t ] = nums[i];
}
}
// 把后面元素值0
for (int i = t; i < nums.length; i ) {
nums[i] = 0;
}
}