Lambda Expressions

A Lambda expression (introduced in Java 8) is a concise way of writing an instance ...

Uses Java 1.8

Java 8 forEach continue

continue inside loop is not supported by forEach. As a workaround ...

Uses Java 1.8

Predicate example

Predicate in Java is a functional interface whose functional method ...

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Java 8 StringJoiner example

StringJoiner is used to create a sequence of characters that are separated by a ...

Uses Java 1.8

Java Heap sizing

If the heap is too small, the application will spend too much ...

Uses Java 1.8

Garbage Collection Algorithms

Java provides Garbage Collection feature to remove the objects ...

Uses Java 1.8

CompletableFuture example

CompletableFuture example showing how to use complete ...

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Spliterator example

A Spliterator object is used to traverse a collection or stream and it can split ...

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Stream findAny(), findFirst()

Java 8 Stream search examples using Stream findAny() ...

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allMatch(), anyMatch(), noneMatch()

Java Stream allMatch, anymatch, noneMatch examples ...

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flatMap() example

Java 8 Stream flatmap example to convert two dimensional array of String ...

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Convert List to Map

Below example shows how to convert a List to Map in Java 8 using ...

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Collectors groupingBy() example

Example that shows how to group the objects by any attribute using ...

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joining(), minBy(), maxBy() example

Below example shows Java 8 Collectors examples ...

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Stream reduce() example

Below examples show Java 8 Stream reduce examples ...

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Sort List using Stream sorted()

The Stream interface includes sorted() method that can be used to sort a stream ...

Uses Java 1.8

Sort Map

Below examples show how to sort HashMap by key or value Java 8 ...

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Optional example for null check

An Optional is used to represent a object which may or may not contain ...

Uses Java 1.8