1. { "name": "Wangwenwei" }
    1. new HashMap<String,String>(){{put("name","Wangwenwei");
    2. }}
    1. [
    2.     { "name": "Memories" },
    3.     { "name": "Sugar" },
    4.     { "name": "Last Dance" }
    5.   ]
    1. new ArrayList<Map<String, String>>() {{
    2.     add(new HashMap<String, String>() {{ put("name", "Memories"); }});
    3.     add(new HashMap<String, String>() {{ put("name", "Sugar"); }});
    4.     add(new HashMap<String, String>() {{ put("name", "Last Dance"); }});
    5. }}

    https://docs.oracle.com/javase/specs/jls/se10/html/jls-10.html#jls-10.6

    https://docs.oracle.com/javase/specs/jls/se10/html/jls-15.html#jls-15.10.1

    1. [
    2.    [ "00", "01" ],
    3.    [ "10", "11" ]
    4.   ]
    1. new String[][] {
    2.                 new String[] { "00", "01" },
    3.                 new String[] { "10", "11" }
    4.             }