java Stream如何将多个流合并呢?

Stream多个流合并的实现思路

多个Stream流合并可使用Stream.concat方法

//定义两个流
Stream<String> stream1 = Stream.of("A", "B", "C");
Stream<String> stream2 = Stream.of("X", "Y", "Z");
 
//将两个Stream流合并为一个流
Stream<String> mergedStream = Stream.concat(stream1, stream2);
 

// 输出：[A, B, C, X, Y, Z]
System.out.println(mergedStream.collect(Collectors.tolist()));