List集合五种遍历方式

//使用多态方式创建对象
List<String> list = new ArrayList<>();

//添加元素到集合
list.add("大雄");
list.add("静香");
list.add("小夫");
list.add("胖虎");

//1、使用Iterator接口遍历
Iterator<String> it = list.iterator();
while (it.hasNext()){
    System.out.println(it.next());
}
System.out.println("==========================");

//2、普通for循环遍历
for (int i = 0; i < list.size(); i++) {
    System.out.println(list.get(i));
}
System.out.println("==========================");

//3、增强for循环遍历
for(String a : list){
    System.out.println(a);
}
System.out.println("==========================");

//4、List集合自带迭代器
ListIterator<String> listIterator = list.listIterator();
while(listIterator.hasNext()){
    System.out.println(listIterator.next());
}
System.out.println("==========================");

//5、Lambda
list.forEach(
        item -> System.out.println(item)
);