Onur Baskirt

In this article, we will learn Primitive Type Streams in Java with examples. I will also show various primitive type conversions in a stream. Let’s start! Primitive Type Streams in Java I will explain the primitive types with an example. … Read more

In this article, we will learn Java Streams Sources such as List, Set, Array, Map, and Stream.of(), etc. I will share 5 different examples to show the details of stream sources as much as I can. Let’s start! Java Streams … Read more

In this article, we will learn Java Streams Terminal Operations such as AnyMatch, Collectors, Count, FindAny, FindFirst, Min, Max, NoneMatch, and AllMatch. Java streams should be ended with a terminal operation and we will have many options to use based on … Read more

In this article, we will learn Java Optional Class with examples. The optional class is introduced in Java 8 and helps us to deal with null pointer exceptions. Sometimes it is a nightmare to deal with NullPointerException when we are … Read more

Hi all, in this article, we will learn Java Streams Comparators like Comparator.comparing(), Comparator.naturalOrder(), Comparator.reverseOrder(), etc. The Comparator Interface provides us comparison and sorting options that we can use with Java Streams. Let’s start to do some examples and learn these … Read more

In this post, we will learn Java Streams Intermediate Operations like Filter, Map, FlatMap, Limit, Peek, Skip, Distinct, and Sorted. In a stream pipeline, we have intermediate operations and at the end of the stream, we have terminal operations. We … Read more

In this article, we will learn Java Stream API or in other words Java Streams with examples. Java Streams comes with Java 8 and with stream operations, we can simplify many things such as filtering, sorting, transformations, etc. Let’s start … Read more

In this article, we will learn Java Functional Interfaces which are coming by default in Java. These interfaces are; Supplier, Consumer, Predicate, Function, Runnable, and Callable. First of all, I highly suggest you use Java 8 and higher versions of Java … Read more

In this article, we will learn all about lambda functions in Java and Custom Functional Interfaces with examples. It is good to learn lambda declarations with custom functional interfaces together. Let’s create a custom interface as PlayMusicService which has a … Read more