Java 8 New Features

Explore Java 8 fundamentals, including lambda expressions and sam interfaces, to streamline collections, reduce boilerplate, and prepare interview-ready functional programming skills.

Learn to write lambda expressions in Java 8 by using a functional interface with a single abstract method, replacing anonymous classes, and leveraging type inference for one argument.

Explore how to define a functional interface with a single abstract method, use @FunctionalInterface annotations, and implement operations (add, multiply, subtract) with concise lambdas that resolve at compile time.

Discover how lambda expressions simplify Runnable implementations in Java 8, reducing lines of code from eight to one by treating Runnable as a functional interface.

Explore java 8 functional interfaces by using the Function<T, R> interface to transform inputs, apply them, and join functions with compose and identity to build reusable logic.

Explore Java 8 functional interfaces such as double function and long function, and learn how their apply methods convert double inputs to int, long, or other types, with practical examples.

Demonstrates how Java 8 function composition works with compose and andThen. Shows how one function's output feeds the next input, using uppercase, lowercase, and string concatenation, with type constraints.

Demonstrate Java 8 functional interfaces for double and long functions, using apply to produce outputs and automatic type handling, and introduce a custom interface for multi-argument cases.

Explore how ToDoubleBiFunction and two-argument double-producing interfaces take two inputs and always return a double, with applied as double and T/U parameter explanations.

Explore the Java 8 consumer functional interface, which takes a single input and returns no result; learn to use forEach to apply a consumer, chain consumers, and build new lists.

Explore the consumer functional interface in java 8 by implementing two consumers: one to uppercase a name and one to increment age, then process a list with accept.

Explore the consumer functional interface in Java 8 by building and applying consumers to process numbers, separate odd and even lists, and print results.

Explore the consumer functional interface in Java 8, using method references to apply odd and even number processing on a list of integers, and chain multiple consumers.

Explore the Java 8 BiConsumer functional interface, which accepts two inputs and returns no result; chain actions with andThen and apply to maps and numbers.

Demonstrate BiConsumer usage in Java 8 by processing two inputs, iterating maps and lists with forEach, and printing results via accept.

Explore how BiFunction functional interfaces in Java accept two inputs and produce a third object, using apply and chaining with other functions, and distinguish it from Function.

Explore how the BiPredicate functional interface tests two-argument conditions using the test method, and compose predicates with and, or, and negate for flexible condition logic in Java 8.

Explore how the supplier functional interface in Java 8 acts as a no-input producer that returns values, with examples using double, string, and boolean outputs.

Learn to use the comparator functional interface in Java 8 with lambdas and key extractors to sort nested objects concisely.

Explore how to use the comparator functional interface, including default methods and static helpers like natural order and reverse order, while handling nulls first or last in sorting.

Use thenComparing to chain comparators and sort by multiple fields—first name, last name, then age—handling duplicates via the functional interface and comparator API.

Learn how to replace comparator logic with method references for sorting, using a functional interface to compare by multiple criteria such as age, designation, and last name.

Learn how binary operators and unary operators in Java 8 work, use minBy and maxBy with comparators, and compose functions to process and transform data.

Explore Java 8 suppliers and functional interfaces, including boolean suppliers, double suppliers, long suppliers, and method references, with lambdas and testing outputs.