组合:concat:
Stream流中常用的方法_concat:用于把流组合到一起
如果有两个流,希望合并成为一个流,则可以使用 Stream 接口的静态方法 concat :
static <T> Stream<T> concat(Stream<? extends T> a, Stream<? extends T> b)
示例:
public class Demo08Stream_concat {
public static void main(String[] args) {
//创建一个Stream流
Stream<String> stream1 = Stream.of("张三丰", "张翠山", "赵敏", "周芷若", "张无忌");
//获取一个Stream流
String[] arr = {
"喜羊羊","美羊羊","灰太狼","懒羊羊","红太狼"};
Stream<String> stream2 = Stream.of(arr);
//把以上两个流组合为一个流
Stream<String> concat = Stream.concat(stream1, stream2);
//遍历concat流
concat.forEach(name-> System.out.println(name));
}
}
程序演示: