Learn Java from Scratch - A Beginner's Guide - Step 10 - Exploring New Java API - Predicate - not Method

The video tutorial introduces the Predicate Not method introduced in JDK 11. It begins by setting up a Java class and demonstrates how to define predicates to filter even numbers. The tutorial then explains how to use the negate method to filter odd numbers and discusses the use of method references with Predicate Not for filtering. The video concludes with a summary of the Predicate Not method and its significance in Java 11.

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

• To enhance performance

• To create new predicates

• To negate existing predicates

• To sort lists

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

• By using a switch statement

• By using a while loop

• By using a for loop

• By using a predicate with a lambda expression

Which method is used to filter a stream of numbers using a predicate?

• map()

• reduce()

• filter()

• collect()

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

• It doubles the output

• It halves the output

• It reverses the logic of the predicate

• It sorts the output

What is the output when using the negate method on an even number predicate?

• Negative numbers

• Even numbers

• Odd numbers

• Prime numbers

Why is the Predicate.not method introduced in Java 11?

• To allow negation of method references

• To improve sorting algorithms

• To enhance list creation

• To simplify string operations

How does Predicate.not differ from the negate method?

• Predicate.not is used for method references

• Predicate.not is faster

• Predicate.not is used for sorting

• Predicate.not is used for list creation