java8以前傳統迭代方法:
List<String> list =new ArrayList<String>();
//賦值;
list.add("ss");
for(String s:list){
s+="pp";
}
java8迭代方法:
List<String> list =new ArrayList<String>();
//賦值;
list.add("ss");
list.foreach(s->System.out.println(s));
自定義List迭代:
List<Order> list=new ArrayList<Order>();
//初始化操作;
list.foreach(Order->Order.getName());