Filtering a List of Persons with Lambda Expression - Predicate and Consumer | Java Lambda Expression

In this Java programming tutorial, we explore how to filter a list of Person objects using lambda expressions with the Predicate and Consumer functional interfaces. Java lambda expressions provide a powerful way to streamline code by defining behavior inline, making it easier to work with collections.

**Key Points Covered:**
- Explanation of lambda expressions in Java and their utility in functional programming.
- Introduction to the Predicate and Consumer functional interfaces and their roles in filtering and processing collections.
- Step-by-step demonstration of how to define and apply lambda expressions with Predicate for filtering Person objects based on specific criteria.
- Practical examples showcasing different scenarios where lambda expressions with Predicate and Consumer are advantageous for filtering and processing.

By the end of this video, you'll have a solid understanding of how to leverage lambda expressions, Predicate, and Consumer interfaces to efficiently filter and process lists of Person objects in Java, enhancing your ability to write concise and effective code.

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How to filter the list of the person using lambda expression? - The predicate and Consumer | Java Lambda expressions

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[jvsnyc]

The technical part of this is spot on. However, once you make the static method so general by taking both a Predicate<Person> and a Consumer<Person>, printNameBeginWithB() becomes a ridiculous name for the method, as now it can apply any filter, not just NameBeginWithB, and it can do anything with those results, not just print them. So it would be like having a method:
int addTwoAndThree(int a, int b)
{
return a + b;
}
The code works fine, but we went from extremely specific to extremely general functionality of the method, and left the hard-coded name on it!