Java向List集合中批量添加元素的实现方法

List<String> list = new ArrayList<String>();
Collections.addAll(list, "a", "b", "c");

String [] array = new String[] {"a", "b", "c"};
List<String> list = new ArrayList<String>();
Collections.addAll(list, array);

		List<String> list = new ArrayList<String>(){
			{
				this.add("a");
				this.add("b");
				this.add("c");
			}
		};

public class Demo01Collections {
    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<>();
        //往集合中添加多个元素
        
        //public static <T> boolean addAll(Collection<T> c, T... elements):往集合中添加一些元素。
        Collections.addAll(list,"a","b","c","d","e");
        System.out.println(list);//[a, b, c, d, e]
        //public static void shuffle(List<?> list) 打乱顺序:打乱集合顺序。
        Collections.shuffle(list);
        System.out.println(list);//[b, d, c, a, e], [b, d, c, a, e]
    }
}