Why Lambda expression use functional interface only

As you know functional programming is supported in JAVA 8 with the help of Lambda expression. The Lambda expression supported the Functional interface. These interfaces also are known as the Single Abstract method(SAM). The Lambda expressions support only those interfaces which have only one abstract method. It provides a body to the abstract method and … Read more

Java 8 lambda expression example

Let’s discuss some more example of the lambda expression. Example of Lambda expression with empty parameters Output: Not using any parameterProviding body to display() method Example of Lambda expression with parameters Output: Using two parameter value is:2 8Provoding body to display() method Example of Lambda expression with forEach Output: HiHelloHeyByeBye!!!!! Example with forEach for User-defined … Read more

How lambda expression works in java

As you already know lambda expression is used only to implement the Functional interfaces. Whenever you are using a lambda expression then a reference of the interface will be created. Here we will see how lambda expression works in java. Here is the table content of the article will we will cover this topic.1. First … Read more

Lambda expression java 8

In this post, we will see what is the lambda expression java. In java, Lambda expression was introduced in java 8. In java 8 lambda expression changes the way the coding and provides some tips to write efficient code. It is also known as functional programming java 8 Here is the table content of the … Read more

Optional class in java 8

In this article, we will discuss how to use the Optional class in java 8? What are the benefits of optional class? We will also discuss the methods of Optional class. Here is the table content of the article will we will cover this topic.1. What is the Optional class in Java 8?2. How to … Read more

Function interface in Java 8

Here is the table content of the article will we will cover this topic.1. What is the functional interface in Java 8?2. How to use the Function interface?3. Advantages of functional interface? What is the function interface in Java 8? The Function interface is defined in the java.util.function package. It contains one abstract method that … Read more

Supplier interface in Java

The supplier interface is defined in the java.util.function package. It contains one abstract method which is known as get() method. This interface returns the result of Type T. The supplier interface has only one method that supplies the data, unlike the consumer interface it doesn’t consume any data. In this post, we will see what … Read more

Consumer in Java 8

In Java 8 Consumer interface is defined in the java.util.function package. It contains one abstract method that is known as accept() method. This interface accepts a single input argument and doesn’t return the result. The Consumer interface is useful when an object needs to be consumed. It takes an object as input and you can … Read more

Why consumer in java 8

As per our recent discussion on Consumer, Now you have some knowledge of the Consumer interface. In this article, we will read Why consumers in java 8 and a real-time java consumer example? As you already know Consumer interface consumes the object and doesn’t return the result. In the Consumer interface we have an abstract … Read more

Why predicate in java 8

As per our recent discussion on Predicate, Now you have some knowledge of the Predicate interface. In this article, we will read why predicate in java 8? and how we use java predicate example in real-time.As you already know Predicate interface evaluates the condition and returns the result in boolean form. In the Predicate interface, … Read more