A Java method reference is a short form of a lambda that only calls one existing method. Learn the four kinds with their lambda equivalents, array constructor references, this::method and super::method, and the compile errors and NullPointerException cases to watch for.
Learn to create a Comparator instance with lambda expressions, method references and chaining multiple comparators for complex comparisons.
Java Streams can be defined as a sequence of elements from a source that supports aggregate operations on them. The source refers to a collection or array.
Java Predicates are boolean-valued statements that may be true or false depending on the test argument. Predicates are used to filter Streams.
Lambda expressions are known to many of us who have worked on advanced languages like Scala. The term “lambda” has its origin in Lambda calculus that uses the Greek letter lambda (λ) to denote a function abstraction. Lambda expressions were introduced to Java as part of Java 8 release. 1. What are …
Java 8 contains the new Date and Time APIs/classes (JSR-310), called ThreeTen, which will change how you have been handling dates in Java.
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