java基础知识，题目描述如图所示

Question

1.为什么第一个打印语句为null，第二个打印语句为perfect？

Answer 1

When executing the anonymous inner class, the reference of “ArrayList” has not been assigned to NAMES

Answer 2

The first sentence of System.out.println(NAMES), the code block

new ArrayList<String>() {{
    add("prefect");
    System.out.println("init: " + NAMES); 
}};

The execution has not been completed, so NAMES has not yet become a reference to this "ArrayList", so it is null