java foreach和匿名数组的问题

Answer 1

The object traversed must be object, not a basic type. Array types are not classes, but array instances are objects. But in this case, your array has not yet become an instance, so an error is reported.

Answer 2

The second syntax is incorrect. There is no such way of writing in Java.

for (int a:new int[] {3,4}) {
    System.out.println(a);
}