如何在Java中从数组(int[])创建ArrayList(ArrayList<Integer>)
我看到了这个问题:Create ArrayList from array
然而,当我用下面的代码尝试该解决方案时,它并不是在所有情况下都有效:
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
public class ToArrayList {
public static void main(String[] args) {
// this works
String[] elements = new String[] { "Ryan", "Julie", "Bob" };
List<String> list = new ArrayList<String>(Arrays.asList(elements));
System.out.println(list);
// this works
List<Integer> intList = null;
intList = Arrays.asList(3, 5);
System.out.println(intList);
int[] intArray = new int[] { 0, 1 };
// this doesn't work!
intList = new ArrayList<Integer>(Arrays.asList(intArray));
System.out.println(intList);
}
}
我做错了什么?代码intList = new ArrayList<Integer>(Arrays.asList(intArray));
不是应该编译得很好吗
共 (0) 个答案