// Interface 1interfaceFlyable{voidfly();}// Interface 2interfaceWalkable{voidwalk();}// Parent classclassAnimal{voidmakeSound()out"Animal makes a sound");}}// Child class inheriting from Animal and implementing Flyable and WalkableclassBirdextendsAnimalimplementsFlyable,Walkable{@Overridepublicvoidf...
Java 8 came up with tons of new features and enhancements like Lambda expressions, Streams, CompletableFutures etc. In this post I’ll give you a detailed explanation of CompletableFuture and all its methods using simple examples. What’s a CompletableFuture? CompletableFuture is used for async...
The factory design pattern is used when we have a superclass with multiple subclasses and based on input, we need to return one of the subclasses. This pattern takes out the responsibility of the instantiation of aClassfrom the client program to the factory class. We can apply a singleton p...
We don’t like exceptions but we always have to deal with them, great news is that Java Exception handling framework is very robust and easy to understand and use. Exception can arise from different kind of situations such as wrong data entered by user, hardware failure, network connection fa...
Tutorial explains how to use Java 8's predefined collectors Collectors.summarizingInt(), Collectors.summarizingLong(), Collectors.summarizingDouble() with examples, incl. explanation of method definitions, Java 8 code examples showing usage of summarizin
For example, the following log levels are sorted from least to most important with some explanation on how I see them: TRACE– Very fine-grained information only used in a rare case where you need the full visibility of what is happening. In most cases, the TRACE level will be very verbo...
which helps in storing and processing the data efficiently. This framework has several useful classes which have tons of useful functions which makes a programmer task super easy. I have written several tutorials on Collections in Java. All the tutorials are shared with examples and source codes ...
If your code needs more than a normal explanation, then possibly re-factor your code. Keep comments indentation uniform and match for best readability. Comments are for humans so use simple language to explain. Always add documentation comments in your source code. Happy Learning !! Weekly ...
Below are examples mentioned: Example #1 This program demonstrates the creation of a simple Predicate and then calling that Predicate method later point of time for evaluation condition with a test method as shown. Code: import java.util.function.Predicate; ...
1.7. Real-World Examples of the Facade Pattern 1.8. Best Practices for Implementing the Facade Pattern 2. Example: Video Conversion System 2.1. Explanation of the Example 2.2. Benefits 2.3. Output 3. Links and Literature 3.1. vogella Java example code Facade...