1.2 In above example, we should use flatMap() to convert Stream<String[]> to Stream<String>. TestExample1.java package com.mkyong.java8; import java.util.Arrays; import java.util.stream.Stream; public class TestExample1 { public static void main(String[] args) { String[][] data = ne...
util.Set; import java.util.stream.Collectors; public class FlatMapExample1 { public static void main(String[] args) { Developer o1 = new Developer(); o1.setName("mkyong"); o1.addBook("Java 8 in Action"); o1.addBook("Spring Boot in Action"); o1.addBook("Effective Java (3nd ...
// Signature of the HttpClient.get method Mono<JsonObject> get(String url); // The two urls to call String firstUserUrl = "my-api/first-user"; String userDetailsUrl = "my-api/users/details/"; // needs the id at the end // Example with map Mono<Mono<JsonObject>> result = HttpCli...
2. show all pairs of two arrays In order to show all possible pairs we need handle every item of numbers2 in the stream of number1. There are multiple stream when invokenumber2.stream()method. So we needflatMapto handle multiple stream and put the result in a new stream. List<Integer...
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Java 代码语言:txt 复制 import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class FlatMapExample { public static void main(String[] args) { List<List<Integer>> listOfLists = Arrays.asList( Arrays.asList(1, 2, 3), Arrays.asList(4, 5), Arrays.as...
// Same example with flatMap Mono<JsonObject> bestResult = HttpClient.get(firstUserUrl). flatMap(user -> HttpClient.get(userDetailsUrl + user.getId())); // Now the result has the type we expected 2.3 返回 map() 返回一个值的流
Drop me your questions related toStream flatMap() exampleinJava Stream API. Happy Learning !!
Nothing special in the first example, aFunctionis applied to return theStringin uppercase.在第一个示例中没有什么特别的,应用了一个Function以大写形式返回String。 Second example making usage offlatMap:第二个示例使用flatMap: @Test public void testflatMap() throws Exception { ...
For an introduction to RxJava, refer tothis article. In this tutorial, we’ll understand the difference by walking through a simple example. 2.flatMap TheflatMapoperator converts each item returned from a source observable into an independent observable using the supplied function and then merges...