//:TestArray.java
public class TestArray {
    public static void main(String[] args) {
        int[] a = {};
        int[] b = null;
        try {
            System.out.println("{ }分配内存\ta.length="+a.length);
        } catch(Exception e) {
            System.out.println("{ }没有分配内存");
        } finally {
            try {
                System.out.println("null分配内存\tb.length="+b.length);
            } catch(Exception e) {
                System.out.println("null没有分配内存");
            }
        }
    }
}