Java 将原始数组添加到链表
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Add Primitive Array to Linked List
提问by Tuxino
I am trying to add an array of integers to a Linked List. I understand that primitive types need a wrapper which is why I am trying to add my int elements as Integers. Thanks in advance.
我正在尝试将整数数组添加到链表。我知道原始类型需要一个包装器，这就是我尝试将 int 元素添加为整数的原因。提前致谢。
int [] nums = {3, 6, 8, 1, 5};
LinkedList<Integer>list = new LinkedList<Integer>();
for (int i = 0; i < nums.length; i++){
list.add(i, new Integer(nums(i)));
Sorry - my question is, how can I add these array elements to my LinkedList?
抱歉 - 我的问题是，如何将这些数组元素添加到我的 LinkedList 中？
采纳答案by Prince
You are doing it correctly except change this line
除了更改此行外，您做得正确
list.add(i, new Integer(nums(i))); // <-- Expects a method
to
到
list.add(i, new Integer(nums[i]));
or
或者
list.add(i, nums[i]); // (autoboxing) Thanks Joshua!
回答by Ashot Karakhanyan
If you use Integerarray instead of intarray, you can convert it shorter.
如果使用Integer数组而不是int数组，则可以将其转换得更短。
Integer[] nums = {3, 6, 8, 1, 5};
final List<Integer> list = Arrays.asList(nums);
Or if you want to use only int[] you can do it like this:
或者如果你只想使用 int[] 你可以这样做：
int[] nums = {3, 6, 8, 1, 5};
List<Integer> list = new LinkedList<Integer>();
for (int currentInt : nums) {
list.add(currentInt);
}
And use Listinstead LinkedListin the left side.
并使用List，而不是LinkedList在左侧。
