ArrayList 數組 初始化方法

https://blog.csdn.net/u011523796/article/details/79537055

ArrayList初始化方法：

1、Arrays.asList

ArrayList<Type> obj = new ArrayList<Type>(Arrays.asList(Object o1, Object o2, Object o3, ....so on));

2、生成匿名內部內進行初始化

ArrayList<T> obj = new ArrayList<T>() {{
    add(Object o1);
    add(Object o2);
    ...
    ...
}};

3、常規方式

ArrayList<T> obj = new ArrayList<T>();
obj.add("o1");
obj.add("o2");
...
...

或者

ArrayList<T> obj = new ArrayList<T>();
List list = Arrays.asList("o1","o2",...);
obj.addAll(list);

4、Collections.ncopies

ArrayList<T> obj = new ArrayList<T>(Collections.nCopies(count,element));//把element復制count次填入ArrayList中

 

數組初始化方法：

String[] STR_MOOD = new String[]{"興奮","開心","輕松","平靜","無助","憂傷","不安","暴躁"};