Supplier : Functional Interface Java 8

Introduction

In this tutorial we will look at the use of Supplier a functional interface introduced in java 8.

Refer The video Tutorial for detail

 

Use Case 

Supplier is a functional interface which is used to return data without accepting anything as parameter.The sample code is shown below.

//this accepts an argument & return a result. Supplier<String> supplier=new Supplier<String>() { @Override public String get() { return "Data from supplier functional interface "; } };

The above case Supplier will not receive anything but return the result. The function is returning a String.

Conclusion 

In this tutorial we saw the use case of functional interface - Supplier. which is introduced in java 8 to act as supplier without receiving any parameter.