Java 8 Function Interface Tutorial with Examples | Lambda Expression

In this video tutorial, we will learn how to use Function functional interface with an example.
The Function is a functional interface introduced in Java 8; it takes an argument (object of type T) and returns an object (object of type R). The argument and output can be a different type.
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[@theresapan6128]

Very clear, concise, and useful examples and explanations, many thanks!

[@presidentravi4492]

Awesome..

[@shivashanker4488]

Videos are really awesome , but its much better if you could remove duplicate videos from playlist. Thank you for providing such great content.

[@javatechnology24]

Useful examples. Also cover other Java 8 functional interfaces with examples

[@niranjanbasha8537]

Good example and also provide examples using collections

[@kvnagendra5354]

Good

[@AnupSingh154]

Repeating " fazil mohamed' question, how your editor not showing error. Did you create your own generic , how?

[@fazilmes]

Can you please give some insight on ConvertListToMap method?. Why the return type is Map instead of just Map.

[@JavaGuides]

The convertListToMap() is a generic method, you can pass any type as key-value pair to Map. In this example, we are using String but this method not limited to String, you can pass any type such Integer, Object, custom type(Employee, Student).

[@venkatasaisowjanya3463]

what is difference between andThen and compose methods?

[@DeepakLalchandaniProfile]

How to execute the below code FunctionalInterface public interface MyFirstFunctionalInterface { public void firstWork(); @Override public String toString(); //Overridden from Object class @Override public boolean equals(Object obj); //Overridden from Object class } 2. Which book are you referring in your entire Java website ?