Java 8 Method and Constructor References: Simplifying Code and Boosting Efficiency - Explained!

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🔴 Video summary
In Java, Method References and Constructor References are shorthand notations for lambda expressions that can be used to simplify the code and make it more readable.
A Method Reference is a shorthand notation for a lambda expression that invokes a method. It provides a way to refer to an existing method by name instead of specifying a lambda expression that defines a new method. Method References are used to simplify lambda expressions that call a single method with a single parameter.
A Constructor Reference is a shorthand notation for a lambda expression that creates a new object using a constructor. It provides a way to refer to an existing constructor by name instead of specifying a lambda expression that defines a new constructor. Constructor References are used to simplify lambda expressions that create new objects.
Method References and Constructor References can be used with functional interfaces, which are interfaces that have a single abstract method. They can be used in place of lambda expressions when the lambda expression is simply invoking a single method or constructor.
Overall, Method References and Constructor References can help to simplify code and make it more concise and readable by reducing the amount of boilerplate code needed for simple lambda expressions.
🔴 Timestamps
Intro 0:00

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I binge watched this whole playlist, thank you for teaching, it was very informative and precise.

[@EngineeringDigest]

You're very welcome!

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[@shubhrarawat311]

This is a great video for clear and concise understanding of method referencing! Great content.

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Awesome explanation

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[@EngineeringDigest]

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[@riteshghule_patil7807]

how can we use constructor refence if constructor takes more than one parameter ... and is it possible ? Well thanks for great video

[@milankushwah8580]

You can do it like this: public class Main { public static void main(String[] args) { // Define a functional interface with two parameters (name and age) BiFunction personFactory = Person::new; // Use the constructor reference to create a new Person instance Person person = personFactory.apply("John", 30); System.out.println("Name: " + person.name); System.out.println("Age: " + person.age); } }

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