leetcode解题之27 #Remove ElementJava版

27  Remove Element

Given an array and a value, remove all instances of that value in place and return the new length.

The order of elements can be changed. It doesn't matter what you leave beyond the new length.

题目要求从数组中删除指定值的元素，并返回新数组的长度。

public int removeElement(int[] nums, int val) { if (nums.length == 0 || nums == null) return 0; int i = 0; int j = 0; //用j 来标记新数组 while (i < nums.length) { if (nums[i] == val) { i++; }else{ nums[j]=nums[i]; j++; i++; } } return j; }