Supplier Interface

Supplier : Supplier is a functional Interface is coming form java.util.funcation package. Which has been introduces in java 8 to implement functional programming in java.

                                         interface Supplier<T>{
                                                public T get();
                                          }
Note: T is type of results Supplied by the Supplier.

1. Supplier does not take any argument but produces a value of type T.
2. Supplier functional Interface contains only one default method is call get().
3. get() method is abstract method so under supplier interface.
4. Supplier functional interface don't contain any static and default method.

Example 1: How to get System date using Supplier functional interface.

 Output: Mon Nov 04 14:52:32 IST 2019

Example 2: How to generate random name using supplier functional interface.

Output:-
Baby
Pinny
Maya

Example 3: How to generate random 6-digit OTP using Supplier Functional Interface.

Output:
515121
550490
650770
609529

Example 4 : How to get random password using Supplier functional interface.

Output:-
A9A2A5A0
A9A8A2A2
A0A5A2A2
A3A7A6A8

Comparison Table of Predicate, Function, Consumer and Supplier Functional Interface.

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Sudhir Kumar