Java Programming for Complete Beginners - Java 16 - Step 10 - Exploring New Java API - Predicate - not Method

The video tutorial introduces the Predicate Not method introduced in JDK 11. It demonstrates how to create a predicate to filter even numbers and use the negate method to filter odd numbers. The tutorial also covers using method references with Predicate Not, highlighting its utility in functional programming. The video concludes with a brief look at the documentation for Predicate Not.

What is the primary purpose of the Predicate Not method introduced in JDK 11?

• To filter even numbers

• To sort lists

• To negate existing predicates

• To create new predicates

How do you define a predicate to filter even numbers in Java?

• Using a for loop

• Using Predicate with a lambda expression

• Using a while loop

• Using Predicate.of() method

Which method is used to filter elements in a stream using a predicate?

• reduce()

• collect()

• filter()

• map()

What does the negate method do when applied to a predicate?

• It doubles the predicate

• It removes the predicate

• It adds a new condition to the predicate

• It reverses the logic of the predicate

Why can't you use the negate method directly with method references?

• Negate method is not available for method references

• Method references do not support predicates

• Method references are not compatible with streams

• Method references are immutable

What is the advantage of using Predicate Not with method references?

• It increases execution speed

• It reduces memory usage

• It allows for more complex logic

• It simplifies the code

What is the output when using Predicate Not with a method reference for odd numbers?

• No numbers

• Even numbers

• All numbers

• Odd numbers