java 如何将 Vector<Integer> 转换为 int[]？
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how to convert Vector<Integer> to an int[]?
提问by Alex Moreno
Possible Duplicate:
How to convert List<Integer> to int[] in Java?
Is there some method to convert a Vector< Integer> to an int[]?
有什么方法可以将 Vector<Integer> 转换为 int[]？
Thanks
谢谢
采纳答案by unholysampler
回答by MarkPowell
Integer[] sl = (Integer[]) myVector.toArray(new Integer[0]);
回答by IvoC
Vector uses objects and not primary types. so you can only convert to an Object[], to convert to a primary type array you'd have to use an additional step.
Vector 使用对象而不是主要类型。所以您只能转换为 Object[]，要转换为主要类型数组，您必须使用额外的步骤。
with no further comments on what's the point of your code, I would say that Integer[] would acomplish the same thing
没有进一步评论你的代码有什么意义，我会说 Integer[] 会完成同样的事情
回答by Peter Lawrey
You can use a loop to copy a vector into an int[]
您可以使用循环将向量复制到 int[]
Vector<Integer> vector = ....
int count = 0, ints[] = new int[vector.size()];
for(int i: vector) ints[count++] = i;
