摘要：
将ArrayList中的元素按照给定字符拼接起来 public static void main(String[] args) { List<String> list = Arrays.asList("nice","to","meet","you"); System.out.println(list 阅读全文
摘要：
Collectors.toList()用来结束Stream流。 public static void main(String[] args) { List<String> list = Arrays.asList("hello","world","stream"); list.stream().ma 阅读全文
摘要：
Stream流的创建方法 public static void main(String[] args) { Stream stream1 = Stream.of("hello","world","hello stream"); String[] myArray = new String[]{"hel 阅读全文
摘要：
方法引用实际上是Lambda表达式的一种语法糖 方法引用分为4类: 1.类名::静态方法名 public class Student { private String name; private int mark; public Student(String name, int mark) { th 阅读全文