** 1. 一个 Stream 只可以使用一次**
多次使用就会报错:stream has already been operated upon or closed,流已经被操作或关闭
** 2. 解决方法一**
利用Supplier接口重用流
package day12.prepareLesson.c_Stream;
import java.sql.SQLOutput;
import java.util.function.Supplier;
import java.util.stream.Stream;
public class StreamFilter03 {
public static void main(String[] args) {
String[] arr = {
"张无忌", "张三丰", "周芷若","张哈哈","张明"};
//重用流
Supplier<Stream