Initialization of anonymous classes for Java maps

Can be used directly:

map<string, object> testmap = new hashmap<string, object> () {

{Put ("test1", "test11");

Put ("Test2", "test11");

}}; To initialize.

In the online search, this is the use of anonymous classes in the way to initialize. The first layer {} is the definition of an anonymous class, and the second layer {} is the definition of the initialization function.

But what is not figured out is that this should be an initialization method. Rather than according to:

arraylist<string> test1 = new arraylist<string> (test2);

That's the way it turns out.

Initialization of anonymous classes for Java maps