把int改成Integer,foreach里你是遍历list,不用[]的
Integer[] arr = {1,2,3};
List<Integer> l1 = Arrays.asList(arr);
for(Integer i:l1)
{
System.out.println(i);
}
Integer[] arr = {1,2,3};
List<Integer> l1 = Arrays.asList(arr);
for(Integer i:l1)
{
System.out.println(i);
}
public class Test {
public static void main(String[] args)
{
int[] arr = {1,2,3};
List<int[]> l1 = Arrays.asList(arr);
for(int[] i:l1)
{
for (int j = 0; j < i.length; j++) {
System.out.println(i[j]);
}
}
}
}
public static void main(String[] args) {
List list=Arrays.asList("abc",new Object(),1);
System.out.println(list.toString());
}
}
结果是:[abc, java.lang.Object@d0af9b, 1]