Core Java Tutorials & Examples

This project contains Core Java code samples that are used as examples on amitph tutorials.

List of popular tutorials

Understanding Java 8 Streams API

Understand Arrays.asList vs new ArrayList( Arrays.asList

Sort HashMap by Value or Key in Java

Read JSON Strings into Java Objects with Jackson API

Parse JSON Strings in Java Objects with Gson API

Merging two Maps in Java

Mapping Lists of different elements types using Model Mapper

List Files and Subdirectories from a Directory in Java

Java 8 Streams API – Stream Collectors

Java 8 Streams – Terminal Operations

Java 8 Streams – Terminal Operations

Java 8 Streams – Laziness and Performance

Java 8 Streams – Intermediate Operations

Introduction to Java TreeSets With Examples

Introduction to Java LinkedHashSet With Examples

Introduction to Java HashSets With Examples

Introduction To Java Collections

Introduction to Java Collections Set Interface

Introduction to Java Collections Map Interface

Introduction to HashMap in Java with Examples

How to write Java Streams Custom Collector

How to Remove Duplicate Elements from List in Java

How to Partition List in Multiple Sublists in Java

How to Merge Multiple Collections in Java

How to Merge Multiple Collections in Java

How to Initialize a List Inline in Java

How to Initialize a HashSet Inline in Java

How to Initialize a HashMap Inline in Java

Filtering a Map in Java

Examples of Converting List to Map using Streams

Examples of Conversion Between List and Set in Java

Examples of Conversion Between Array and Set in Java

Examples of Conversion Between Array and List in Java

Converting Between Array of Primitives to Array of Objects

Convert List to Concatenated String with Delimiter in Java

Convert Java Objects To JSON with Jackson API

Convert Java Objects To JSON with Gson API

Comparator with Java Lambda Expression Examples

‘At First Sight’ With Closures in Java (old)

Sorting Collections with Java Streams API

Interfaces In Java

Abstract classes in Java

Default Methods in Java Interfaces

Static Methods in Java Interfaces

How to Add an Element to a Java Stream

Getting the Last Element of a Java Stream

How to Remove Duplicate Elements from a Java List

Count and Remove Duplicates from a Java Stream

Negate a Java Predicate and Method Reference

Java Streams filter() with Lambda Expressions

Create a Java Stream of Random Numbers

Merging Multiple Java Streams

Chaining Multiple Java Predicates Together

Java HashSet Sorting Examples

Check if Two Java Lists are Equal

Asserting Java Lists for Equality Ignoring the Order

Finding the Differences Between Two Java Lists

Comparing Two Lists In Java

Finding the Difference Between Two Java Sets

Flattening Nested Lists in Java

Case-Insensitive 搜索 in Java ArrayLists

Sorting Collection of Objects by Multiple Fields in Java

How to use

Clone the project using

~ git clone https://github.com/amitrp/java-examples.git