lambda - 声纳 : Replace with lambda with a method reference with a string parameter

Question

 List<String> list;
 //...add something in the list
String value = "anything";
boolean b = list.stream().anyMatch( element -> value.startsWith(element))

我获得了有关 Replace with lambda 和方法引用的声纳信息。但我必须调用字符串上的方法引用？？？

Answer 1

String value = "anything";
boolean b = list.stream().anyMatch( value::startsWith);

或者您甚至不需要声明字符串值，您可以直接在 lambda 表达式中使用“anything”:

list.stream().anyMatch( "anything"::startsWith)