Tutorial Playlist
191 Lessons1. Introduction to Java
2. What is Java?
3. History of Java
4. Java Tutorial for Beginners
5. How Do Java Programs Work?
6. JDK in Java
7. C++ Vs Java
8. Java vs. Python
9. Java vs. JavaScript
10. From Java Source Code to Executable
11. How to Install Java in Linux
12. How to Install Java in Windows 10
13. Java Hello World Program
14. Structure of Java Program and Java Syntax
15. Operators in Java
16. Java If-else
17. Switch Case In Java
18. Loops in Java
19. Infinite loop in Java
20. For Loop in Java
21. For Each Loop in Java
22. Constructor in Java
23. Constructor Overloading in Java
24. Copy Constructor in Java
25. Default Constructor in Java
26. Parameterized Constructors in Java
27. Constructor Chaining In Java
28. Finalize Method in Java
29. Static Method in Java
30. Equals Method in Java
31. Abstract Method in Java
32. toString() Method in Java
33. Difference between equals method in Java
34. Inheritance in Java
35. Multiple Inheritance in Java
36. Hierarchical Inheritance in Java
37. Java Classes and Objects
38. Scanner Class in java
39. All classes in java are inherited from which class
40. What is Nested Class in Java
41. POJO Class in Java
42. Anonymous Class in Java
43. Final Class in Java
44. Object Class in Java
45. Packages in Java
46. Access Modifiers in Java
47. Static Keyword In Java
48. Final Keyword in Java
49. Checked and Unchecked Exceptions in Java
50. User Defined Exception in Java
51. Error vs. Exception in Java
52. Java Collection
53. Collections in Java
54. Garbage Collection in Java
55. Generics In Java
56. Java Interfaces
57. Functional Interface in Java
58. Marker Interface in Java
59. Streams in Java
60. Byte stream in java
61. File Handling in Java
62. Thread in Java
63. Thread Lifecycle In Java
64. Daemon Thread in Java
65. Thread Priority in Java
66. Deadlock in Java
67. String Pool in Java
68. Java Database Connectivity(JDBC)
69. Design Patterns in Java
70. Functional Programming in Java
71. OOP vs Functional vs Procedural
72. Heap Memory and Stack Memory in Java
73. Applet in Java
74. Java Swing
75. Java Frameworks
76. Hibernate Framework
77. JUnit Testing
78. How to Install Eclipse IDE for Java?
79. Command line arguments in Java
80. Jar file in Java
81. Java Clean Code
82. OOPs Concepts in Java
83. Java OOPs Concepts
84. Overloading vs Overriding in Java
85. Java 8 features
86. String in Java
87. String to int in Java
88. Why String Is Immutable in Java?
89. Primitive Data Types in Java
90. Non-Primitive Data Types in Java
91. This and Super Keyword in Java
92. HashMap in Java
93. Comparable And Comparator in Java
94. Type Casting in Java
95. Arrays Sort in Java with Examples
96. Variable Hiding and Variable Shadowing in Java
97. Enum in Java
98. Substring in Java
99. Pattern Programs in Java
100. Hashcode in Java
101. What is ByteCode in Java?
102. How To Take Input From User in Java
103. GCD of Two Numbers in Java
104. Linked List in Java
105. Arithmetic Operators in Java
106. Conditional Operators in Java
107. Stack and Queue in Java
108. Array Length in Java
109. Number Pattern Program in Java
110. Split in java
111. Map In Java
112. Difference Between Throw and Throws in Java
113. Difference Between Data Hiding and Abstraction
114. HashSet in Java
115. String Length in Java
116. Factorial Using Recursion in Java
117. DateFormat in Java
118. StringBuilder Class in java
119. Instance variables in Java
120. Java List Size
121. Java APIs
122. Reverse an Array in Java
123. StringBuffer and StringBuilder Difference in Java
124. Java Program to Add Two Numbers
125. String to Array in Java
126. Regular Expressions in Java
127. Identifiers in Java
128. Data Structures in Java
129. Set in Java
130. Pass By Value and Call By Reference in Java
131. Try Catch in Java
132. Bubble Sort in Java
133. Caesar Cipher Program in Java
134. Queue in Java
135. Object Creation in Java
136. Multidimensional Array in Java
137. How to Read a File in Java
138. String Comparison in Java
139. Volatile Keyword in Java
140. Control Statements in Java
141. Jagged Array in Java
142. Two-Dimensional Array in Java
143. Java String Format
144. Replace in Java
145. charAt() in Java
146. CompareTo in Java
147. Matrix Multiplication in Java
148. Static Variable in Java
149. Event Handling in Java
150. parseInt in Java
151. Java ArrayList forEach
152. Abstraction in Java
153. String Input in Java
154. Logical Operators in Java
155. instanceof in Java
156. Math Floor in Java
157. Selection Sort Java
158. int to char in Java
159. Stringtokenizer in java
160. Implementing and Manipulating Abs in Java
161. Char array to string in java
162. Convert Double To String In Java
163. Deque in Java
164. Converting a List to an Array in Java
165. The Max function in java
166. Removing whitespace from string in java
167. String arrays in Java
168. Strings in Java Vs Strings in Cpp
169. Sum of digits of a number in Java
170. Art of Graphical User Interfaces
171. Trim in Java
172. RxJava
Now Reading
173. Recursion in Java
174. HashSet Java
175. Difference Between Java and Python
176. Square Root in Java
177. Reverse A String in Java
178. Even Odd Program in Java
179. Fibonacci Series in Java
180. Prime Number Program in Java
181. Java Program to Print Prime Numbers in a Given Range
182. Java Leap Year Program
183. Swapping of Two Numbers in Java
184. LCM of Two Numbers in Java
185. Math.sqrt() Function in Java
186. Area of Triangle in Java
187. Sort a String In Java
188. Factorial Program in Java
189. Javafx
190. Lambda expression in java
191. Setup Java Home and IDE on macOS
When it comes to software development, building responsive and scalable applications is of utmost importance. To meet these requirements, developers often turn to reactive programming paradigms, and one of the most powerful tools in this domain is RxJava. In this blog post, we will explore the capabilities of RxJava and learn how to leverage its features to create robust and efficient applications. Whether you are an Android developer or working with Java, RxJava offers a wealth of possibilities to enhance your projects.
RxJava, a thorough implementation of the ReactiveX library, provides a comprehensive set of tools for handling asynchronous and event-driven programming. It introduces the concept of reactive streams, where data flows asynchronously between producers and consumers. This enables developers to write code that is not only more concise but also more responsive and scalable.
In this section, we will dive into a comprehensive tutorial on RxJava, covering the basics and key concepts to get you started with reactive programming.
To begin using RxJava, you need to set up the necessary dependencies in your project. If you are developing an Android application, you can include RxJava by adding the appropriate dependency to your Gradle file. For Java projects, you may add the RxJava JAR file to your classpath.
The two core components of RxJava are Observables and Observers. An Observable represents a source of data that emits items over time. Observers subscribe to these Observables to receive and handle the emitted items. You can think of Observables as streams of data and Observers as listeners that react to these streams.
You can create Observables in several ways. One commonly employed approach is to use the Observable.create() method and define the emission logic inside the subscribe() method. Alternatively, you may use factory methods such as Observable.just() or Observable.fromIterable() to create Observables from existing data.
To receive data from Observables, you need to subscribe to them. The subscribe() method allows you to specify how to handle the emitted items. You can provide separate callbacks for handling the emitted data, errors, and completion signals.
RxJava provides a wide range of operators and transformations that enable you to manipulate and transform the emitted data streams. For example, the map() operator allows you to apply a function to each emitted item, transforming it into another type. The filter() operator lets you selectively filter items based on certain criteria. These operators aid you in processing the data in a reactive and functional manner.
In real-world scenarios, errors can occur during data processing. RxJava provides operators like onErrorResumeNext() and onErrorReturn() to handle errors gracefully. These operators enable you to recover from errors or provide fallback values in case of failure.
Backpressure is an important concept in reactive programming, especially when dealing with large amounts of data or slow consumers. RxJava offers various strategies to handle backpressure, ensuring that the data flow is controlled and efficient. You can use operators like onBackpressureBuffer() or onBackpressureDrop() to handle backpressure scenarios effectively (rxjava vs reactor).
If you are developing Spring Boot applications, you can seamlessly integrate RxJava to leverage its reactive capabilities. By combining RxJava with Spring WebFlux, you can build highly responsive and scalable microservices.
By following this tutorial, you will gain a solid foundation in RxJava and be able to apply reactive programming principles to your projects. With its extensive set of operators and transformations, error handling mechanisms, and support for backpressure, RxJava empowers you to build responsive and scalable applications.
RxJava is a versatile tool that can benefit various types of developers. Android developers can use RxJava to handle asynchronous operations efficiently, improving the responsiveness of their apps. Java developers can also leverage RxJava to simplify complex workflows and streamline event-driven programming. Whether you are a beginner or an experienced developer, understanding RxJava can significantly enhance your coding skills.
Before diving into RxJava, it's helpful to have some knowledge and understanding of certain concepts. Here are the prerequisites that will ensure a smoother learning experience:
By having a good foundation in these prerequisites, you'll be able to grasp the concepts and techniques presented in the RxJava tutorial more effectively. It will enhance your learning experience and enable you to apply RxJava successfully in your projects. So, make sure to familiarize yourself with these prerequisites before diving into RxJava.
RxJava is widely used in Android development to handle asynchronous operations and create responsive applications. By integrating RxJava into your Android projects, you can simplify complex workflows, handle concurrency, and efficiently manage data streams. Let's explore how RxJava can benefit Android development:
To include RxJava in your project, you need to add the RxJava dependency to your build configuration. The exact steps may vary depending on your build tool or framework. Here's an example for Maven:
<dependency>
<groupId>io.reactivex.rxjava3</groupId>
<artifactId>rxjava</artifactId>
<version>3.1.2</version>
</dependency>
This adds the RxJava dependency to your project, allowing you to use RxJava in your code. Be sure to replace the version number with the latest version available. For other build tools or frameworks, refer to their respective documentation for adding dependencies.
RxJava 2:
RxJava 2 is a previous major version of the RxJava library. It provides a powerful framework for implementing reactive programming in Java-based applications. Here are some key points about RxJava 2:
Overall, RxJava 2 offers a powerful and flexible framework for implementing reactive programming in Java-based applications. Its extensive operator library, backward compatibility, and support for Reactive Streams make it a popular choice for developers working with asynchronous and event-driven scenarios.
Spring Boot is a popular Java framework for building robust and scalable web applications. While Spring Boot primarily supports reactive programming with its native project, Spring WebFlux, you can still integrate RxJava into your Spring Boot applications to leverage its reactive capabilities. Here's how RxJava can be used with Spring Boot:
RxJava and Reactor are popular Java libraries for implementing reactive programming. RxJava has a mature ecosystem, a rich set of operators following the Observer pattern, and extensive community support. It offers various backpressure strategies for handling data flow. However, integration with Spring requires additional effort.
On the other hand, Reactor is part of the Spring ecosystem, adheres to the Reactive Streams specification, and seamlessly integrates with Spring projects like Spring WebFlux. It has built-in backpressure handling and benefits from the vibrant Spring community.
Consider project requirements, compatibility, and community support when choosing between RxJava and Reactor.
Reactive programming with RxJava opens up a world of possibilities for building responsive and scalable applications. By harnessing the power of reactive streams and leveraging the extensive set of operators and transformations, aspiring developers can create efficient and elegant code that handles complex data flows effortlessly. Whether you are developing Android apps or working on Java projects, integrating RxJava can greatly enhance the performance and maintainability of your applications.
1. How can I handle backpressure in RxJava or Reactor?
RxJava provides operators like onBackpressureBuffer, onBackpressureDrop, and onBackpressureLatest to handle backpressure. Reactor handles backpressure by default as per the Reactive Streams specification.
2. How do I integrate RxJava or Reactor with Spring applications?
RxJava requires additional adapters and configuration to integrate with Spring. Reactor seamlessly integrates with Spring, especially in Spring WebFlux projects.
3. What are the different operators available in RxJava on Javatpoint, and how can they be used to transform and manipulate data streams?
In RxJava on Javatpoint, various operators are available to transform and manipulate data streams. These operators include Map, Filter, Merge, FlatMap, Reduce, Distinct, Concat, Scan, Debounce, and Take. By utilizing these operators, you can perform tasks such as data conversion, filtering, combining, and more, enabling powerful reactive programming workflows.
PAVAN VADAPALLI
Director of Engineering
Director of Engineering @ upGrad. Motivated to leverage technology to solve problems. Seasoned leader for startups and fast moving orgs. Working …Read More
Popular
Talk to our experts. We’re available 24/7.
Indian Nationals
1800 210 2020
Foreign Nationals
+918045604032
upGrad does not grant credit; credits are granted, accepted or transferred at the sole discretion of the relevant educational institution offering the diploma or degree. We advise you to enquire further regarding the suitability of this program for your academic, professional requirements and job prospects before enrolling. upGrad does not make any representations regarding the recognition or equivalence of the credits or credentials awarded, unless otherwise expressly stated. Success depends on individual qualifications, experience, and efforts in seeking employment.
upGrad does not grant credit; credits are granted, accepted or transferred at the sole discretion of the relevant educational institution offering the diploma or degree. We advise you to enquire further regarding the suitability of this program for your academic, professional requirements and job prospects before enr...